Home / 3,957.45-5,461.32-2,189.08

Finding the Fourth Proportional to 3,957.45, 5,461.32 and 2,189.08

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Solution

The fourth proportional to 3,957.45, 5,461.32 and 2,189.08 is: 3,020.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.45 : 5,461.32 = 2,189.08 : x
  2. Step 2: Convert to fraction form
    3,957.45/5,461.32 = 2,189.08/x
  3. Step 3: Cross multiply
    3,957.45x = 5,461.32 × 2,189.08
  4. Step 4: Simplify right side
    3,957.45x = 11,955,266.39
  5. Step 5: Solve for x
    x = 11,955,266.39/3,957.45
  6. Step 6: Final answer
    x = 3,020.95

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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.