Home / 3,957.39-5,461.25-2,189.07

Finding the Fourth Proportional to 3,957.39, 5,461.25 and 2,189.07

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Solution

The fourth proportional to 3,957.39, 5,461.25 and 2,189.07 is: 3,020.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.39 : 5,461.25 = 2,189.07 : x
  2. Step 2: Convert to fraction form
    3,957.39/5,461.25 = 2,189.07/x
  3. Step 3: Cross multiply
    3,957.39x = 5,461.25 × 2,189.07
  4. Step 4: Simplify right side
    3,957.39x = 11,955,047.59
  5. Step 5: Solve for x
    x = 11,955,047.59/3,957.39
  6. Step 6: Final answer
    x = 3,020.94

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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.