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Finding the Fourth Proportional to 5,672.32, 8,509.12 and 2,899.12

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Solution

The fourth proportional to 5,672.32, 8,509.12 and 2,899.12 is: 4,349.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,672.32 : 8,509.12 = 2,899.12 : x
  2. Step 2: Convert to fraction form
    5,672.32/8,509.12 = 2,899.12/x
  3. Step 3: Cross multiply
    5,672.32x = 8,509.12 × 2,899.12
  4. Step 4: Simplify right side
    5,672.32x = 24,668,959.97
  5. Step 5: Solve for x
    x = 24,668,959.97/5,672.32
  6. Step 6: Final answer
    x = 4,349.01

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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.