Home / 6,387.30-8,816.85-3,735.54

Finding the Fourth Proportional to 6,387.30, 8,816.85 and 3,735.54

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Solution

The fourth proportional to 6,387.30, 8,816.85 and 3,735.54 is: 5,156.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,387.30 : 8,816.85 = 3,735.54 : x
  2. Step 2: Convert to fraction form
    6,387.30/8,816.85 = 3,735.54/x
  3. Step 3: Cross multiply
    6,387.30x = 8,816.85 × 3,735.54
  4. Step 4: Simplify right side
    6,387.30x = 32,935,695.85
  5. Step 5: Solve for x
    x = 32,935,695.85/6,387.30
  6. Step 6: Final answer
    x = 5,156.43

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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.