Home / 3,639.35-5,020.98-2,381.13

Finding the Fourth Proportional to 3,639.35, 5,020.98 and 2,381.13

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Solution

The fourth proportional to 3,639.35, 5,020.98 and 2,381.13 is: 3,285.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.35 : 5,020.98 = 2,381.13 : x
  2. Step 2: Convert to fraction form
    3,639.35/5,020.98 = 2,381.13/x
  3. Step 3: Cross multiply
    3,639.35x = 5,020.98 × 2,381.13
  4. Step 4: Simplify right side
    3,639.35x = 11,955,606.11
  5. Step 5: Solve for x
    x = 11,955,606.11/3,639.35
  6. Step 6: Final answer
    x = 3,285.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.