Home / 1,854.19-2,557.66-1,224.73

Finding the Fourth Proportional to 1,854.19, 2,557.66 and 1,224.73

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Solution

The fourth proportional to 1,854.19, 2,557.66 and 1,224.73 is: 1,689.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,854.19 : 2,557.66 = 1,224.73 : x
  2. Step 2: Convert to fraction form
    1,854.19/2,557.66 = 1,224.73/x
  3. Step 3: Cross multiply
    1,854.19x = 2,557.66 × 1,224.73
  4. Step 4: Simplify right side
    1,854.19x = 3,132,442.93
  5. Step 5: Solve for x
    x = 3,132,442.93/1,854.19
  6. Step 6: Final answer
    x = 1,689.39

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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.