Home / 2,921.54-4,031.24-1,742.18

Finding the Fourth Proportional to 2,921.54, 4,031.24 and 1,742.18

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Solution

The fourth proportional to 2,921.54, 4,031.24 and 1,742.18 is: 2,403.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.54 : 4,031.24 = 1,742.18 : x
  2. Step 2: Convert to fraction form
    2,921.54/4,031.24 = 1,742.18/x
  3. Step 3: Cross multiply
    2,921.54x = 4,031.24 × 1,742.18
  4. Step 4: Simplify right side
    2,921.54x = 7,023,145.70
  5. Step 5: Solve for x
    x = 7,023,145.70/2,921.54
  6. Step 6: Final answer
    x = 2,403.92

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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.