Home / 7,787.79-10,747.19-4,251.08

Finding the Fourth Proportional to 7,787.79, 10,747.19 and 4,251.08

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Solution

The fourth proportional to 7,787.79, 10,747.19 and 4,251.08 is: 5,866.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,787.79 : 10,747.19 = 4,251.08 : x
  2. Step 2: Convert to fraction form
    7,787.79/10,747.19 = 4,251.08/x
  3. Step 3: Cross multiply
    7,787.79x = 10,747.19 × 4,251.08
  4. Step 4: Simplify right side
    7,787.79x = 45,687,089.47
  5. Step 5: Solve for x
    x = 45,687,089.47/7,787.79
  6. Step 6: Final answer
    x = 5,866.50

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1.5x scale

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.