Home / 2,921.66-4,031.23-1,742.50

Finding the Fourth Proportional to 2,921.66, 4,031.23 and 1,742.50

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Solution

The fourth proportional to 2,921.66, 4,031.23 and 1,742.50 is: 2,404.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.66 : 4,031.23 = 1,742.50 : x
  2. Step 2: Convert to fraction form
    2,921.66/4,031.23 = 1,742.50/x
  3. Step 3: Cross multiply
    2,921.66x = 4,031.23 × 1,742.50
  4. Step 4: Simplify right side
    2,921.66x = 7,024,418.28
  5. Step 5: Solve for x
    x = 7,024,418.28/2,921.66
  6. Step 6: Final answer
    x = 2,404.26

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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.