Home / 1,340.68-2,023.39-1,306.12

Finding the Fourth Proportional to 1,340.68, 2,023.39 and 1,306.12

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Solution

The fourth proportional to 1,340.68, 2,023.39 and 1,306.12 is: 1,971.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340.68 : 2,023.39 = 1,306.12 : x
  2. Step 2: Convert to fraction form
    1,340.68/2,023.39 = 1,306.12/x
  3. Step 3: Cross multiply
    1,340.68x = 2,023.39 × 1,306.12
  4. Step 4: Simplify right side
    1,340.68x = 2,642,790.15
  5. Step 5: Solve for x
    x = 2,642,790.15/1,340.68
  6. Step 6: Final answer
    x = 1,971.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.