Home / 7,524.76-11,287.84-1,978.13

Finding the Fourth Proportional to 7,524.76, 11,287.84 and 1,978.13

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Solution

The fourth proportional to 7,524.76, 11,287.84 and 1,978.13 is: 2,967.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,524.76 : 11,287.84 = 1,978.13 : x
  2. Step 2: Convert to fraction form
    7,524.76/11,287.84 = 1,978.13/x
  3. Step 3: Cross multiply
    7,524.76x = 11,287.84 × 1,978.13
  4. Step 4: Simplify right side
    7,524.76x = 22,328,866.14
  5. Step 5: Solve for x
    x = 22,328,866.14/7,524.76
  6. Step 6: Final answer
    x = 2,967.39

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1.5x scale

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.