Home / 7,521.80-11,282.87-2,591.37

Finding the Fourth Proportional to 7,521.80, 11,282.87 and 2,591.37

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Solution

The fourth proportional to 7,521.80, 11,282.87 and 2,591.37 is: 3,887.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,521.80 : 11,282.87 = 2,591.37 : x
  2. Step 2: Convert to fraction form
    7,521.80/11,282.87 = 2,591.37/x
  3. Step 3: Cross multiply
    7,521.80x = 11,282.87 × 2,591.37
  4. Step 4: Simplify right side
    7,521.80x = 29,238,058.29
  5. Step 5: Solve for x
    x = 29,238,058.29/7,521.80
  6. Step 6: Final answer
    x = 3,887.11

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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.