Home / 7,451.61-11,178.60-2,521.53

Finding the Fourth Proportional to 7,451.61, 11,178.60 and 2,521.53

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Solution

The fourth proportional to 7,451.61, 11,178.60 and 2,521.53 is: 3,782.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,451.61 : 11,178.60 = 2,521.53 : x
  2. Step 2: Convert to fraction form
    7,451.61/11,178.60 = 2,521.53/x
  3. Step 3: Cross multiply
    7,451.61x = 11,178.60 × 2,521.53
  4. Step 4: Simplify right side
    7,451.61x = 28,187,175.26
  5. Step 5: Solve for x
    x = 28,187,175.26/7,451.61
  6. Step 6: Final answer
    x = 3,782.70

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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.