Home / 1,642.16-2,266.92-1,268.24

Finding the Fourth Proportional to 1,642.16, 2,266.92 and 1,268.24

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Solution

The fourth proportional to 1,642.16, 2,266.92 and 1,268.24 is: 1,750.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642.16 : 2,266.92 = 1,268.24 : x
  2. Step 2: Convert to fraction form
    1,642.16/2,266.92 = 1,268.24/x
  3. Step 3: Cross multiply
    1,642.16x = 2,266.92 × 1,268.24
  4. Step 4: Simplify right side
    1,642.16x = 2,874,998.62
  5. Step 5: Solve for x
    x = 2,874,998.62/1,642.16
  6. Step 6: Final answer
    x = 1,750.74

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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.