Home / 4,753.10-7,125.80-1,981.85

Finding the Fourth Proportional to 4,753.10, 7,125.80 and 1,981.85

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Solution

The fourth proportional to 4,753.10, 7,125.80 and 1,981.85 is: 2,971.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,753.10 : 7,125.80 = 1,981.85 : x
  2. Step 2: Convert to fraction form
    4,753.10/7,125.80 = 1,981.85/x
  3. Step 3: Cross multiply
    4,753.10x = 7,125.80 × 1,981.85
  4. Step 4: Simplify right side
    4,753.10x = 14,122,266.73
  5. Step 5: Solve for x
    x = 14,122,266.73/4,753.10
  6. Step 6: Final answer
    x = 2,971.17

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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.