Home / 2,887.32-4,332.02-939.53

Finding the Fourth Proportional to 2,887.32, 4,332.02 and 939.53

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Solution

The fourth proportional to 2,887.32, 4,332.02 and 939.53 is: 1,409.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.32 : 4,332.02 = 939.53 : x
  2. Step 2: Convert to fraction form
    2,887.32/4,332.02 = 939.53/x
  3. Step 3: Cross multiply
    2,887.32x = 4,332.02 × 939.53
  4. Step 4: Simplify right side
    2,887.32x = 4,070,036.39
  5. Step 5: Solve for x
    x = 4,070,036.39/2,887.32
  6. Step 6: Final answer
    x = 1,409.62

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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.