Home / 5,421.61-7,479.24-3,152.94

Finding the Fourth Proportional to 5,421.61, 7,479.24 and 3,152.94

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Solution

The fourth proportional to 5,421.61, 7,479.24 and 3,152.94 is: 4,349.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.61 : 7,479.24 = 3,152.94 : x
  2. Step 2: Convert to fraction form
    5,421.61/7,479.24 = 3,152.94/x
  3. Step 3: Cross multiply
    5,421.61x = 7,479.24 × 3,152.94
  4. Step 4: Simplify right side
    5,421.61x = 23,581,565.61
  5. Step 5: Solve for x
    x = 23,581,565.61/5,421.61
  6. Step 6: Final answer
    x = 4,349.55

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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.