Home / 1,932.86-2,899.38-1,387.52

Finding the Fourth Proportional to 1,932.86, 2,899.38 and 1,387.52

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Solution

The fourth proportional to 1,932.86, 2,899.38 and 1,387.52 is: 2,081.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,932.86 : 2,899.38 = 1,387.52 : x
  2. Step 2: Convert to fraction form
    1,932.86/2,899.38 = 1,387.52/x
  3. Step 3: Cross multiply
    1,932.86x = 2,899.38 × 1,387.52
  4. Step 4: Simplify right side
    1,932.86x = 4,022,933.24
  5. Step 5: Solve for x
    x = 4,022,933.24/1,932.86
  6. Step 6: Final answer
    x = 2,081.34

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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.