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Finding the Fourth Proportional to 6,359.52, 9,538.92 and 1,679.40

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Solution

The fourth proportional to 6,359.52, 9,538.92 and 1,679.40 is: 2,519.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,359.52 : 9,538.92 = 1,679.40 : x
  2. Step 2: Convert to fraction form
    6,359.52/9,538.92 = 1,679.40/x
  3. Step 3: Cross multiply
    6,359.52x = 9,538.92 × 1,679.40
  4. Step 4: Simplify right side
    6,359.52x = 16,019,662.25
  5. Step 5: Solve for x
    x = 16,019,662.25/6,359.52
  6. Step 6: Final answer
    x = 2,519.00

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1.5x scale

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.