Home / 3,957.60-5,461.35-2,189.16

Finding the Fourth Proportional to 3,957.60, 5,461.35 and 2,189.16

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Solution

The fourth proportional to 3,957.60, 5,461.35 and 2,189.16 is: 3,020.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.60 : 5,461.35 = 2,189.16 : x
  2. Step 2: Convert to fraction form
    3,957.60/5,461.35 = 2,189.16/x
  3. Step 3: Cross multiply
    3,957.60x = 5,461.35 × 2,189.16
  4. Step 4: Simplify right side
    3,957.60x = 11,955,768.97
  5. Step 5: Solve for x
    x = 11,955,768.97/3,957.60
  6. Step 6: Final answer
    x = 3,020.96

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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.