Home / 2,012.68-2,778.29-1,349.29

Finding the Fourth Proportional to 2,012.68, 2,778.29 and 1,349.29

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Solution

The fourth proportional to 2,012.68, 2,778.29 and 1,349.29 is: 1,862.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,012.68 : 2,778.29 = 1,349.29 : x
  2. Step 2: Convert to fraction form
    2,012.68/2,778.29 = 1,349.29/x
  3. Step 3: Cross multiply
    2,012.68x = 2,778.29 × 1,349.29
  4. Step 4: Simplify right side
    2,012.68x = 3,748,718.91
  5. Step 5: Solve for x
    x = 3,748,718.91/2,012.68
  6. Step 6: Final answer
    x = 1,862.55

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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.