Home / 1,982.11-2,960.15-1,592.71

Finding the Fourth Proportional to 1,982.11, 2,960.15 and 1,592.71

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Solution

The fourth proportional to 1,982.11, 2,960.15 and 1,592.71 is: 2,378.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,982.11 : 2,960.15 = 1,592.71 : x
  2. Step 2: Convert to fraction form
    1,982.11/2,960.15 = 1,592.71/x
  3. Step 3: Cross multiply
    1,982.11x = 2,960.15 × 1,592.71
  4. Step 4: Simplify right side
    1,982.11x = 4,714,649.69
  5. Step 5: Solve for x
    x = 4,714,649.69/1,982.11
  6. Step 6: Final answer
    x = 2,378.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.