Home / 3,012.20-4,156.78-1,649.46

Finding the Fourth Proportional to 3,012.20, 4,156.78 and 1,649.46

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Solution

The fourth proportional to 3,012.20, 4,156.78 and 1,649.46 is: 2,276.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,012.20 : 4,156.78 = 1,649.46 : x
  2. Step 2: Convert to fraction form
    3,012.20/4,156.78 = 1,649.46/x
  3. Step 3: Cross multiply
    3,012.20x = 4,156.78 × 1,649.46
  4. Step 4: Simplify right side
    3,012.20x = 6,856,442.34
  5. Step 5: Solve for x
    x = 6,856,442.34/3,012.20
  6. Step 6: Final answer
    x = 2,276.22

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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.