Home / 1,966.28-2,714.50-1,340.12

Finding the Fourth Proportional to 1,966.28, 2,714.50 and 1,340.12

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Solution

The fourth proportional to 1,966.28, 2,714.50 and 1,340.12 is: 1,850.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,966.28 : 2,714.50 = 1,340.12 : x
  2. Step 2: Convert to fraction form
    1,966.28/2,714.50 = 1,340.12/x
  3. Step 3: Cross multiply
    1,966.28x = 2,714.50 × 1,340.12
  4. Step 4: Simplify right side
    1,966.28x = 3,637,755.74
  5. Step 5: Solve for x
    x = 3,637,755.74/1,966.28
  6. Step 6: Final answer
    x = 1,850.07

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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.