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Finding the Fourth Proportional to 5,775.74, 8,663.59 and 1,393.19

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Solution

The fourth proportional to 5,775.74, 8,663.59 and 1,393.19 is: 2,089.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,775.74 : 8,663.59 = 1,393.19 : x
  2. Step 2: Convert to fraction form
    5,775.74/8,663.59 = 1,393.19/x
  3. Step 3: Cross multiply
    5,775.74x = 8,663.59 × 1,393.19
  4. Step 4: Simplify right side
    5,775.74x = 12,070,026.95
  5. Step 5: Solve for x
    x = 12,070,026.95/5,775.74
  6. Step 6: Final answer
    x = 2,089.78

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Similar ratio
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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.