Home / 3,479.27-5,220.12-1,531.63

Finding the Fourth Proportional to 3,479.27, 5,220.12 and 1,531.63

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Solution

The fourth proportional to 3,479.27, 5,220.12 and 1,531.63 is: 2,297.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.27 : 5,220.12 = 1,531.63 : x
  2. Step 2: Convert to fraction form
    3,479.27/5,220.12 = 1,531.63/x
  3. Step 3: Cross multiply
    3,479.27x = 5,220.12 × 1,531.63
  4. Step 4: Simplify right side
    3,479.27x = 7,995,292.40
  5. Step 5: Solve for x
    x = 7,995,292.40/3,479.27
  6. Step 6: Final answer
    x = 2,297.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.