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Finding the Fourth Proportional to 5,775.53, 8,663.27 and 1,392.98

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Solution

The fourth proportional to 5,775.53, 8,663.27 and 1,392.98 is: 2,089.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,775.53 : 8,663.27 = 1,392.98 : x
  2. Step 2: Convert to fraction form
    5,775.53/8,663.27 = 1,392.98/x
  3. Step 3: Cross multiply
    5,775.53x = 8,663.27 × 1,392.98
  4. Step 4: Simplify right side
    5,775.53x = 12,067,711.56
  5. Step 5: Solve for x
    x = 12,067,711.56/5,775.53
  6. Step 6: Final answer
    x = 2,089.46

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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.