Home / 1,268.17-1,899.45-1,237.18

Finding the Fourth Proportional to 1,268.17, 1,899.45 and 1,237.18

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Solution

The fourth proportional to 1,268.17, 1,899.45 and 1,237.18 is: 1,853.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268.17 : 1,899.45 = 1,237.18 : x
  2. Step 2: Convert to fraction form
    1,268.17/1,899.45 = 1,237.18/x
  3. Step 3: Cross multiply
    1,268.17x = 1,899.45 × 1,237.18
  4. Step 4: Simplify right side
    1,268.17x = 2,349,961.55
  5. Step 5: Solve for x
    x = 2,349,961.55/1,268.17
  6. Step 6: Final answer
    x = 1,853.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.