Home / 2,874.60-4,282.56-2,732.40

Finding the Fourth Proportional to 2,874.60, 4,282.56 and 2,732.40

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Solution

The fourth proportional to 2,874.60, 4,282.56 and 2,732.40 is: 4,070.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,874.60 : 4,282.56 = 2,732.40 : x
  2. Step 2: Convert to fraction form
    2,874.60/4,282.56 = 2,732.40/x
  3. Step 3: Cross multiply
    2,874.60x = 4,282.56 × 2,732.40
  4. Step 4: Simplify right side
    2,874.60x = 11,701,666.94
  5. Step 5: Solve for x
    x = 11,701,666.94/2,874.60
  6. Step 6: Final answer
    x = 4,070.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.