Home / 2,921.35-4,031.46-1,742.47

Finding the Fourth Proportional to 2,921.35, 4,031.46 and 1,742.47

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Solution

The fourth proportional to 2,921.35, 4,031.46 and 1,742.47 is: 2,404.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.35 : 4,031.46 = 1,742.47 : x
  2. Step 2: Convert to fraction form
    2,921.35/4,031.46 = 1,742.47/x
  3. Step 3: Cross multiply
    2,921.35x = 4,031.46 × 1,742.47
  4. Step 4: Simplify right side
    2,921.35x = 7,024,698.11
  5. Step 5: Solve for x
    x = 7,024,698.11/2,921.35
  6. Step 6: Final answer
    x = 2,404.61

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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.