Home / 3,456.18-4,769.91-2,660.40

Finding the Fourth Proportional to 3,456.18, 4,769.91 and 2,660.40

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Solution

The fourth proportional to 3,456.18, 4,769.91 and 2,660.40 is: 3,671.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,456.18 : 4,769.91 = 2,660.40 : x
  2. Step 2: Convert to fraction form
    3,456.18/4,769.91 = 2,660.40/x
  3. Step 3: Cross multiply
    3,456.18x = 4,769.91 × 2,660.40
  4. Step 4: Simplify right side
    3,456.18x = 12,689,868.56
  5. Step 5: Solve for x
    x = 12,689,868.56/3,456.18
  6. Step 6: Final answer
    x = 3,671.65

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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.