Home / 3,639.13-5,020.18-2,642.83

Finding the Fourth Proportional to 3,639.13, 5,020.18 and 2,642.83

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Solution

The fourth proportional to 3,639.13, 5,020.18 and 2,642.83 is: 3,645.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.13 : 5,020.18 = 2,642.83 : x
  2. Step 2: Convert to fraction form
    3,639.13/5,020.18 = 2,642.83/x
  3. Step 3: Cross multiply
    3,639.13x = 5,020.18 × 2,642.83
  4. Step 4: Simplify right side
    3,639.13x = 13,267,482.31
  5. Step 5: Solve for x
    x = 13,267,482.31/3,639.13
  6. Step 6: Final answer
    x = 3,645.78

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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.