Home / 2,972.71-4,102.41-1,646.38

Finding the Fourth Proportional to 2,972.71, 4,102.41 and 1,646.38

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Solution

The fourth proportional to 2,972.71, 4,102.41 and 1,646.38 is: 2,272.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.71 : 4,102.41 = 1,646.38 : x
  2. Step 2: Convert to fraction form
    2,972.71/4,102.41 = 1,646.38/x
  3. Step 3: Cross multiply
    2,972.71x = 4,102.41 × 1,646.38
  4. Step 4: Simplify right side
    2,972.71x = 6,754,125.78
  5. Step 5: Solve for x
    x = 6,754,125.78/2,972.71
  6. Step 6: Final answer
    x = 2,272.04

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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.