Home / 3,612.90-5,427.45-3,515.70

Finding the Fourth Proportional to 3,612.90, 5,427.45 and 3,515.70

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Solution

The fourth proportional to 3,612.90, 5,427.45 and 3,515.70 is: 5,281.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.90 : 5,427.45 = 3,515.70 : x
  2. Step 2: Convert to fraction form
    3,612.90/5,427.45 = 3,515.70/x
  3. Step 3: Cross multiply
    3,612.90x = 5,427.45 × 3,515.70
  4. Step 4: Simplify right side
    3,612.90x = 19,081,285.97
  5. Step 5: Solve for x
    x = 19,081,285.97/3,612.90
  6. Step 6: Final answer
    x = 5,281.43

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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.