Home / 2,874.33-3,966.52-1,615.40

Finding the Fourth Proportional to 2,874.33, 3,966.52 and 1,615.40

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Solution

The fourth proportional to 2,874.33, 3,966.52 and 1,615.40 is: 2,229.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,874.33 : 3,966.52 = 1,615.40 : x
  2. Step 2: Convert to fraction form
    2,874.33/3,966.52 = 1,615.40/x
  3. Step 3: Cross multiply
    2,874.33x = 3,966.52 × 1,615.40
  4. Step 4: Simplify right side
    2,874.33x = 6,407,516.41
  5. Step 5: Solve for x
    x = 6,407,516.41/2,874.33
  6. Step 6: Final answer
    x = 2,229.22

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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.