Home / 7,456.31-11,184.33-1,909.60

Finding the Fourth Proportional to 7,456.31, 11,184.33 and 1,909.60

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Solution

The fourth proportional to 7,456.31, 11,184.33 and 1,909.60 is: 2,864.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,456.31 : 11,184.33 = 1,909.60 : x
  2. Step 2: Convert to fraction form
    7,456.31/11,184.33 = 1,909.60/x
  3. Step 3: Cross multiply
    7,456.31x = 11,184.33 × 1,909.60
  4. Step 4: Simplify right side
    7,456.31x = 21,357,596.57
  5. Step 5: Solve for x
    x = 21,357,596.57/7,456.31
  6. Step 6: Final answer
    x = 2,864.37

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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.