Home / 7,487.56-11,231.97-2,555.20

Finding the Fourth Proportional to 7,487.56, 11,231.97 and 2,555.20

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Solution

The fourth proportional to 7,487.56, 11,231.97 and 2,555.20 is: 3,833.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,487.56 : 11,231.97 = 2,555.20 : x
  2. Step 2: Convert to fraction form
    7,487.56/11,231.97 = 2,555.20/x
  3. Step 3: Cross multiply
    7,487.56x = 11,231.97 × 2,555.20
  4. Step 4: Simplify right side
    7,487.56x = 28,699,929.74
  5. Step 5: Solve for x
    x = 28,699,929.74/7,487.56
  6. Step 6: Final answer
    x = 3,833.01

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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.