Home / 6,404.38-9,607.10-1,787.38

Finding the Fourth Proportional to 6,404.38, 9,607.10 and 1,787.38

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Solution

The fourth proportional to 6,404.38, 9,607.10 and 1,787.38 is: 2,681.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,404.38 : 9,607.10 = 1,787.38 : x
  2. Step 2: Convert to fraction form
    6,404.38/9,607.10 = 1,787.38/x
  3. Step 3: Cross multiply
    6,404.38x = 9,607.10 × 1,787.38
  4. Step 4: Simplify right side
    6,404.38x = 17,171,538.40
  5. Step 5: Solve for x
    x = 17,171,538.40/6,404.38
  6. Step 6: Final answer
    x = 2,681.22

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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.