Home / 6,787.85-9,371.61-5,531.91

Finding the Fourth Proportional to 6,787.85, 9,371.61 and 5,531.91

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Solution

The fourth proportional to 6,787.85, 9,371.61 and 5,531.91 is: 7,637.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,787.85 : 9,371.61 = 5,531.91 : x
  2. Step 2: Convert to fraction form
    6,787.85/9,371.61 = 5,531.91/x
  3. Step 3: Cross multiply
    6,787.85x = 9,371.61 × 5,531.91
  4. Step 4: Simplify right side
    6,787.85x = 51,842,875.42
  5. Step 5: Solve for x
    x = 51,842,875.42/6,787.85
  6. Step 6: Final answer
    x = 7,637.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.