Home / 7,538.33-11,308.02-1,991.61

Finding the Fourth Proportional to 7,538.33, 11,308.02 and 1,991.61

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Solution

The fourth proportional to 7,538.33, 11,308.02 and 1,991.61 is: 2,987.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,538.33 : 11,308.02 = 1,991.61 : x
  2. Step 2: Convert to fraction form
    7,538.33/11,308.02 = 1,991.61/x
  3. Step 3: Cross multiply
    7,538.33x = 11,308.02 × 1,991.61
  4. Step 4: Simplify right side
    7,538.33x = 22,521,165.71
  5. Step 5: Solve for x
    x = 22,521,165.71/7,538.33
  6. Step 6: Final answer
    x = 2,987.56

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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.