Home / 3,147.16-4,343.19-1,730.91

Finding the Fourth Proportional to 3,147.16, 4,343.19 and 1,730.91

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Solution

The fourth proportional to 3,147.16, 4,343.19 and 1,730.91 is: 2,388.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.16 : 4,343.19 = 1,730.91 : x
  2. Step 2: Convert to fraction form
    3,147.16/4,343.19 = 1,730.91/x
  3. Step 3: Cross multiply
    3,147.16x = 4,343.19 × 1,730.91
  4. Step 4: Simplify right side
    3,147.16x = 7,517,671.00
  5. Step 5: Solve for x
    x = 7,517,671.00/3,147.16
  6. Step 6: Final answer
    x = 2,388.72

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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.