Home / 2,116.20-2,917.58-1,451.90

Finding the Fourth Proportional to 2,116.20, 2,917.58 and 1,451.90

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Solution

The fourth proportional to 2,116.20, 2,917.58 and 1,451.90 is: 2,001.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.20 : 2,917.58 = 1,451.90 : x
  2. Step 2: Convert to fraction form
    2,116.20/2,917.58 = 1,451.90/x
  3. Step 3: Cross multiply
    2,116.20x = 2,917.58 × 1,451.90
  4. Step 4: Simplify right side
    2,116.20x = 4,236,034.40
  5. Step 5: Solve for x
    x = 4,236,034.40/2,116.20
  6. Step 6: Final answer
    x = 2,001.72

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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.