Home / 6,404.20-9,605.66-1,787.88

Finding the Fourth Proportional to 6,404.20, 9,605.66 and 1,787.88

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Solution

The fourth proportional to 6,404.20, 9,605.66 and 1,787.88 is: 2,681.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,404.20 : 9,605.66 = 1,787.88 : x
  2. Step 2: Convert to fraction form
    6,404.20/9,605.66 = 1,787.88/x
  3. Step 3: Cross multiply
    6,404.20x = 9,605.66 × 1,787.88
  4. Step 4: Simplify right side
    6,404.20x = 17,173,767.40
  5. Step 5: Solve for x
    x = 17,173,767.40/6,404.20
  6. Step 6: Final answer
    x = 2,681.64

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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.