Home / 5,371.20-7,411.75-3,012.88

Finding the Fourth Proportional to 5,371.20, 7,411.75 and 3,012.88

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Solution

The fourth proportional to 5,371.20, 7,411.75 and 3,012.88 is: 4,157.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,371.20 : 7,411.75 = 3,012.88 : x
  2. Step 2: Convert to fraction form
    5,371.20/7,411.75 = 3,012.88/x
  3. Step 3: Cross multiply
    5,371.20x = 7,411.75 × 3,012.88
  4. Step 4: Simplify right side
    5,371.20x = 22,330,713.34
  5. Step 5: Solve for x
    x = 22,330,713.34/5,371.20
  6. Step 6: Final answer
    x = 4,157.49

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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.