Home / 6,389.07-9,587.31-2,691

Finding the Fourth Proportional to 6,389.07, 9,587.31 and 2,691

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Solution

The fourth proportional to 6,389.07, 9,587.31 and 2,691 is: 4,038.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,389.07 : 9,587.31 = 2,691 : x
  2. Step 2: Convert to fraction form
    6,389.07/9,587.31 = 2,691/x
  3. Step 3: Cross multiply
    6,389.07x = 9,587.31 × 2,691
  4. Step 4: Simplify right side
    6,389.07x = 25,799,451.21
  5. Step 5: Solve for x
    x = 25,799,451.21/6,389.07
  6. Step 6: Final answer
    x = 4,038.06

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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.