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Finding the Fourth Proportional to 5,449.71, 8,174.67 and 1,554.21

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Solution

The fourth proportional to 5,449.71, 8,174.67 and 1,554.21 is: 2,331.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,449.71 : 8,174.67 = 1,554.21 : x
  2. Step 2: Convert to fraction form
    5,449.71/8,174.67 = 1,554.21/x
  3. Step 3: Cross multiply
    5,449.71x = 8,174.67 × 1,554.21
  4. Step 4: Simplify right side
    5,449.71x = 12,705,153.86
  5. Step 5: Solve for x
    x = 12,705,153.86/5,449.71
  6. Step 6: Final answer
    x = 2,331.34

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Half scale
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Double scale
Find fourth proportional to 5,450.71, 8,176.17 and 1,555.21
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.