Home / 3,985.92-5,501.88-3,565.53

Finding the Fourth Proportional to 3,985.92, 5,501.88 and 3,565.53

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Solution

The fourth proportional to 3,985.92, 5,501.88 and 3,565.53 is: 4,921.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.92 : 5,501.88 = 3,565.53 : x
  2. Step 2: Convert to fraction form
    3,985.92/5,501.88 = 3,565.53/x
  3. Step 3: Cross multiply
    3,985.92x = 5,501.88 × 3,565.53
  4. Step 4: Simplify right side
    3,985.92x = 19,617,118.20
  5. Step 5: Solve for x
    x = 19,617,118.20/3,985.92
  6. Step 6: Final answer
    x = 4,921.60

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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.