Home / 3,456.38-4,769.56-2,130.11

Finding the Fourth Proportional to 3,456.38, 4,769.56 and 2,130.11

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Solution

The fourth proportional to 3,456.38, 4,769.56 and 2,130.11 is: 2,939.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,456.38 : 4,769.56 = 2,130.11 : x
  2. Step 2: Convert to fraction form
    3,456.38/4,769.56 = 2,130.11/x
  3. Step 3: Cross multiply
    3,456.38x = 4,769.56 × 2,130.11
  4. Step 4: Simplify right side
    3,456.38x = 10,159,687.45
  5. Step 5: Solve for x
    x = 10,159,687.45/3,456.38
  6. Step 6: Final answer
    x = 2,939.40

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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.