Home / 5,403.85-8,105.57-1,706.30

Finding the Fourth Proportional to 5,403.85, 8,105.57 and 1,706.30

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Solution

The fourth proportional to 5,403.85, 8,105.57 and 1,706.30 is: 2,559.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,403.85 : 8,105.57 = 1,706.30 : x
  2. Step 2: Convert to fraction form
    5,403.85/8,105.57 = 1,706.30/x
  3. Step 3: Cross multiply
    5,403.85x = 8,105.57 × 1,706.30
  4. Step 4: Simplify right side
    5,403.85x = 13,830,521.83
  5. Step 5: Solve for x
    x = 13,830,521.83/5,403.85
  6. Step 6: Final answer
    x = 2,559.38

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Half 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.