Home / 2,731.47-3,770.80-1,612.76

Finding the Fourth Proportional to 2,731.47, 3,770.80 and 1,612.76

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Solution

The fourth proportional to 2,731.47, 3,770.80 and 1,612.76 is: 2,226.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,731.47 : 3,770.80 = 1,612.76 : x
  2. Step 2: Convert to fraction form
    2,731.47/3,770.80 = 1,612.76/x
  3. Step 3: Cross multiply
    2,731.47x = 3,770.80 × 1,612.76
  4. Step 4: Simplify right side
    2,731.47x = 6,081,402.80
  5. Step 5: Solve for x
    x = 6,081,402.80/2,731.47
  6. Step 6: Final answer
    x = 2,226.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.