Home / 5,471.07-8,207.81-1,575.47

Finding the Fourth Proportional to 5,471.07, 8,207.81 and 1,575.47

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Solution

The fourth proportional to 5,471.07, 8,207.81 and 1,575.47 is: 2,363.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,471.07 : 8,207.81 = 1,575.47 : x
  2. Step 2: Convert to fraction form
    5,471.07/8,207.81 = 1,575.47/x
  3. Step 3: Cross multiply
    5,471.07x = 8,207.81 × 1,575.47
  4. Step 4: Simplify right side
    5,471.07x = 12,931,158.42
  5. Step 5: Solve for x
    x = 12,931,158.42/5,471.07
  6. Step 6: Final answer
    x = 2,363.55

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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.