Home / 1,781.42-2,454.63-1,514.93

Finding the Fourth Proportional to 1,781.42, 2,454.63 and 1,514.93

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Solution

The fourth proportional to 1,781.42, 2,454.63 and 1,514.93 is: 2,087.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781.42 : 2,454.63 = 1,514.93 : x
  2. Step 2: Convert to fraction form
    1,781.42/2,454.63 = 1,514.93/x
  3. Step 3: Cross multiply
    1,781.42x = 2,454.63 × 1,514.93
  4. Step 4: Simplify right side
    1,781.42x = 3,718,580.35
  5. Step 5: Solve for x
    x = 3,718,580.35/1,781.42
  6. Step 6: Final answer
    x = 2,087.43

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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.