Home / 5,436.78-8,156.40-2,937.92

Finding the Fourth Proportional to 5,436.78, 8,156.40 and 2,937.92

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Solution

The fourth proportional to 5,436.78, 8,156.40 and 2,937.92 is: 4,407.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.78 : 8,156.40 = 2,937.92 : x
  2. Step 2: Convert to fraction form
    5,436.78/8,156.40 = 2,937.92/x
  3. Step 3: Cross multiply
    5,436.78x = 8,156.40 × 2,937.92
  4. Step 4: Simplify right side
    5,436.78x = 23,962,809.91
  5. Step 5: Solve for x
    x = 23,962,809.91/5,436.78
  6. Step 6: Final answer
    x = 4,407.54

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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.