Home / 5,450.72-8,176.16-1,555.13

Finding the Fourth Proportional to 5,450.72, 8,176.16 and 1,555.13

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Solution

The fourth proportional to 5,450.72, 8,176.16 and 1,555.13 is: 2,332.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,450.72 : 8,176.16 = 1,555.13 : x
  2. Step 2: Convert to fraction form
    5,450.72/8,176.16 = 1,555.13/x
  3. Step 3: Cross multiply
    5,450.72x = 8,176.16 × 1,555.13
  4. Step 4: Simplify right side
    5,450.72x = 12,714,991.70
  5. Step 5: Solve for x
    x = 12,714,991.70/5,450.72
  6. Step 6: Final answer
    x = 2,332.72

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Double scale
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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.