Home / 3,240.66-4,471.70-2,045.20

Finding the Fourth Proportional to 3,240.66, 4,471.70 and 2,045.20

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Solution

The fourth proportional to 3,240.66, 4,471.70 and 2,045.20 is: 2,822.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.66 : 4,471.70 = 2,045.20 : x
  2. Step 2: Convert to fraction form
    3,240.66/4,471.70 = 2,045.20/x
  3. Step 3: Cross multiply
    3,240.66x = 4,471.70 × 2,045.20
  4. Step 4: Simplify right side
    3,240.66x = 9,145,520.84
  5. Step 5: Solve for x
    x = 9,145,520.84/3,240.66
  6. Step 6: Final answer
    x = 2,822.12

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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.