Home / 3,150.22-4,721.68-2,785.72

Finding the Fourth Proportional to 3,150.22, 4,721.68 and 2,785.72

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Solution

The fourth proportional to 3,150.22, 4,721.68 and 2,785.72 is: 4,175.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,150.22 : 4,721.68 = 2,785.72 : x
  2. Step 2: Convert to fraction form
    3,150.22/4,721.68 = 2,785.72/x
  3. Step 3: Cross multiply
    3,150.22x = 4,721.68 × 2,785.72
  4. Step 4: Simplify right side
    3,150.22x = 13,153,278.41
  5. Step 5: Solve for x
    x = 13,153,278.41/3,150.22
  6. Step 6: Final answer
    x = 4,175.35

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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.