Home / 5,320.05-7,981.45-2,548.86

Finding the Fourth Proportional to 5,320.05, 7,981.45 and 2,548.86

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Solution

The fourth proportional to 5,320.05, 7,981.45 and 2,548.86 is: 3,823.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.05 : 7,981.45 = 2,548.86 : x
  2. Step 2: Convert to fraction form
    5,320.05/7,981.45 = 2,548.86/x
  3. Step 3: Cross multiply
    5,320.05x = 7,981.45 × 2,548.86
  4. Step 4: Simplify right side
    5,320.05x = 20,343,592.27
  5. Step 5: Solve for x
    x = 20,343,592.27/5,320.05
  6. Step 6: Final answer
    x = 3,823.95

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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.