Home / 2,917.12-4,025.70-1,722.88

Finding the Fourth Proportional to 2,917.12, 4,025.70 and 1,722.88

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Solution

The fourth proportional to 2,917.12, 4,025.70 and 1,722.88 is: 2,377.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.12 : 4,025.70 = 1,722.88 : x
  2. Step 2: Convert to fraction form
    2,917.12/4,025.70 = 1,722.88/x
  3. Step 3: Cross multiply
    2,917.12x = 4,025.70 × 1,722.88
  4. Step 4: Simplify right side
    2,917.12x = 6,935,798.02
  5. Step 5: Solve for x
    x = 6,935,798.02/2,917.12
  6. Step 6: Final answer
    x = 2,377.62

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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.