Home / 3,031.41-4,182.71-1,772.21

Finding the Fourth Proportional to 3,031.41, 4,182.71 and 1,772.21

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Solution

The fourth proportional to 3,031.41, 4,182.71 and 1,772.21 is: 2,445.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,031.41 : 4,182.71 = 1,772.21 : x
  2. Step 2: Convert to fraction form
    3,031.41/4,182.71 = 1,772.21/x
  3. Step 3: Cross multiply
    3,031.41x = 4,182.71 × 1,772.21
  4. Step 4: Simplify right side
    3,031.41x = 7,412,659.90
  5. Step 5: Solve for x
    x = 7,412,659.90/3,031.41
  6. Step 6: Final answer
    x = 2,445.29

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1.5x scale

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.