Home / 2,712.35-4,068.43-1,251.45

Finding the Fourth Proportional to 2,712.35, 4,068.43 and 1,251.45

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Solution

The fourth proportional to 2,712.35, 4,068.43 and 1,251.45 is: 1,877.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.35 : 4,068.43 = 1,251.45 : x
  2. Step 2: Convert to fraction form
    2,712.35/4,068.43 = 1,251.45/x
  3. Step 3: Cross multiply
    2,712.35x = 4,068.43 × 1,251.45
  4. Step 4: Simplify right side
    2,712.35x = 5,091,433.59
  5. Step 5: Solve for x
    x = 5,091,433.59/2,712.35
  6. Step 6: Final answer
    x = 1,877.13

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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.