Home / 2,387.08-3,578.58-927.28

Finding the Fourth Proportional to 2,387.08, 3,578.58 and 927.28

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Solution

The fourth proportional to 2,387.08, 3,578.58 and 927.28 is: 1,390.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,387.08 : 3,578.58 = 927.28 : x
  2. Step 2: Convert to fraction form
    2,387.08/3,578.58 = 927.28/x
  3. Step 3: Cross multiply
    2,387.08x = 3,578.58 × 927.28
  4. Step 4: Simplify right side
    2,387.08x = 3,318,345.66
  5. Step 5: Solve for x
    x = 3,318,345.66/2,387.08
  6. Step 6: Final answer
    x = 1,390.13

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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.