Home / 3,686.28-5,078.41-2,565.29

Finding the Fourth Proportional to 3,686.28, 5,078.41 and 2,565.29

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Solution

The fourth proportional to 3,686.28, 5,078.41 and 2,565.29 is: 3,534.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.28 : 5,078.41 = 2,565.29 : x
  2. Step 2: Convert to fraction form
    3,686.28/5,078.41 = 2,565.29/x
  3. Step 3: Cross multiply
    3,686.28x = 5,078.41 × 2,565.29
  4. Step 4: Simplify right side
    3,686.28x = 13,027,594.39
  5. Step 5: Solve for x
    x = 13,027,594.39/3,686.28
  6. Step 6: Final answer
    x = 3,534.08

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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.