Home / 2,178.80-3,001.66-1,514.50

Finding the Fourth Proportional to 2,178.80, 3,001.66 and 1,514.50

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Solution

The fourth proportional to 2,178.80, 3,001.66 and 1,514.50 is: 2,086.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178.80 : 3,001.66 = 1,514.50 : x
  2. Step 2: Convert to fraction form
    2,178.80/3,001.66 = 1,514.50/x
  3. Step 3: Cross multiply
    2,178.80x = 3,001.66 × 1,514.50
  4. Step 4: Simplify right side
    2,178.80x = 4,546,002.78
  5. Step 5: Solve for x
    x = 4,546,002.78/2,178.80
  6. Step 6: Final answer
    x = 2,086.47

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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.