Home / 3,966.19-5,472.09-2,640.11

Finding the Fourth Proportional to 3,966.19, 5,472.09 and 2,640.11

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Solution

The fourth proportional to 3,966.19, 5,472.09 and 2,640.11 is: 3,642.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,966.19 : 5,472.09 = 2,640.11 : x
  2. Step 2: Convert to fraction form
    3,966.19/5,472.09 = 2,640.11/x
  3. Step 3: Cross multiply
    3,966.19x = 5,472.09 × 2,640.11
  4. Step 4: Simplify right side
    3,966.19x = 14,446,892.17
  5. Step 5: Solve for x
    x = 14,446,892.17/3,966.19
  6. Step 6: Final answer
    x = 3,642.51

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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.