Home / 2,917.02-4,023.72-2,160.06

Finding the Fourth Proportional to 2,917.02, 4,023.72 and 2,160.06

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Solution

The fourth proportional to 2,917.02, 4,023.72 and 2,160.06 is: 2,979.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.02 : 4,023.72 = 2,160.06 : x
  2. Step 2: Convert to fraction form
    2,917.02/4,023.72 = 2,160.06/x
  3. Step 3: Cross multiply
    2,917.02x = 4,023.72 × 2,160.06
  4. Step 4: Simplify right side
    2,917.02x = 8,691,476.62
  5. Step 5: Solve for x
    x = 8,691,476.62/2,917.02
  6. Step 6: Final answer
    x = 2,979.57

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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.