Home / 2,921.15-4,388.34-1,691.57

Finding the Fourth Proportional to 2,921.15, 4,388.34 and 1,691.57

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Solution

The fourth proportional to 2,921.15, 4,388.34 and 1,691.57 is: 2,541.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.15 : 4,388.34 = 1,691.57 : x
  2. Step 2: Convert to fraction form
    2,921.15/4,388.34 = 1,691.57/x
  3. Step 3: Cross multiply
    2,921.15x = 4,388.34 × 1,691.57
  4. Step 4: Simplify right side
    2,921.15x = 7,423,162.35
  5. Step 5: Solve for x
    x = 7,423,162.35/2,921.15
  6. Step 6: Final answer
    x = 2,541.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.