Home / 3,456.92-4,770.78-2,620.16

Finding the Fourth Proportional to 3,456.92, 4,770.78 and 2,620.16

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Solution

The fourth proportional to 3,456.92, 4,770.78 and 2,620.16 is: 3,616.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,456.92 : 4,770.78 = 2,620.16 : x
  2. Step 2: Convert to fraction form
    3,456.92/4,770.78 = 2,620.16/x
  3. Step 3: Cross multiply
    3,456.92x = 4,770.78 × 2,620.16
  4. Step 4: Simplify right side
    3,456.92x = 12,500,206.92
  5. Step 5: Solve for x
    x = 12,500,206.92/3,456.92
  6. Step 6: Final answer
    x = 3,616.00

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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.