Home / 3,639.20-5,459.70-1,042.13

Finding the Fourth Proportional to 3,639.20, 5,459.70 and 1,042.13

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Solution

The fourth proportional to 3,639.20, 5,459.70 and 1,042.13 is: 1,563.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.20 : 5,459.70 = 1,042.13 : x
  2. Step 2: Convert to fraction form
    3,639.20/5,459.70 = 1,042.13/x
  3. Step 3: Cross multiply
    3,639.20x = 5,459.70 × 1,042.13
  4. Step 4: Simplify right side
    3,639.20x = 5,689,717.16
  5. Step 5: Solve for x
    x = 5,689,717.16/3,639.20
  6. Step 6: Final answer
    x = 1,563.45

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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.