Home / 3,755.12-5,631.06-1,445

Finding the Fourth Proportional to 3,755.12, 5,631.06 and 1,445

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Solution

The fourth proportional to 3,755.12, 5,631.06 and 1,445 is: 2,166.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,755.12 : 5,631.06 = 1,445 : x
  2. Step 2: Convert to fraction form
    3,755.12/5,631.06 = 1,445/x
  3. Step 3: Cross multiply
    3,755.12x = 5,631.06 × 1,445
  4. Step 4: Simplify right side
    3,755.12x = 8,136,881.70
  5. Step 5: Solve for x
    x = 8,136,881.70/3,755.12
  6. Step 6: Final answer
    x = 2,166.88

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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.