Home / 3,539.50-5,305.13-3,129.44

Finding the Fourth Proportional to 3,539.50, 5,305.13 and 3,129.44

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Solution

The fourth proportional to 3,539.50, 5,305.13 and 3,129.44 is: 4,690.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,539.50 : 5,305.13 = 3,129.44 : x
  2. Step 2: Convert to fraction form
    3,539.50/5,305.13 = 3,129.44/x
  3. Step 3: Cross multiply
    3,539.50x = 5,305.13 × 3,129.44
  4. Step 4: Simplify right side
    3,539.50x = 16,602,068.79
  5. Step 5: Solve for x
    x = 16,602,068.79/3,539.50
  6. Step 6: Final answer
    x = 4,690.52

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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.