Home / 2,871.54-3,962.66-1,612.70

Finding the Fourth Proportional to 2,871.54, 3,962.66 and 1,612.70

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Solution

The fourth proportional to 2,871.54, 3,962.66 and 1,612.70 is: 2,225.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.54 : 3,962.66 = 1,612.70 : x
  2. Step 2: Convert to fraction form
    2,871.54/3,962.66 = 1,612.70/x
  3. Step 3: Cross multiply
    2,871.54x = 3,962.66 × 1,612.70
  4. Step 4: Simplify right side
    2,871.54x = 6,390,581.78
  5. Step 5: Solve for x
    x = 6,390,581.78/2,871.54
  6. Step 6: Final answer
    x = 2,225.49

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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.