Home / 1,445.38-2,166.21-751.95

Finding the Fourth Proportional to 1,445.38, 2,166.21 and 751.95

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Solution

The fourth proportional to 1,445.38, 2,166.21 and 751.95 is: 1,126.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445.38 : 2,166.21 = 751.95 : x
  2. Step 2: Convert to fraction form
    1,445.38/2,166.21 = 751.95/x
  3. Step 3: Cross multiply
    1,445.38x = 2,166.21 × 751.95
  4. Step 4: Simplify right side
    1,445.38x = 1,628,881.61
  5. Step 5: Solve for x
    x = 1,628,881.61/1,445.38
  6. Step 6: Final answer
    x = 1,126.96

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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.