Home / 3,150.82-4,345.14-2,154.52

Finding the Fourth Proportional to 3,150.82, 4,345.14 and 2,154.52

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Solution

The fourth proportional to 3,150.82, 4,345.14 and 2,154.52 is: 2,971.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,150.82 : 4,345.14 = 2,154.52 : x
  2. Step 2: Convert to fraction form
    3,150.82/4,345.14 = 2,154.52/x
  3. Step 3: Cross multiply
    3,150.82x = 4,345.14 × 2,154.52
  4. Step 4: Simplify right side
    3,150.82x = 9,361,691.03
  5. Step 5: Solve for x
    x = 9,361,691.03/3,150.82
  6. Step 6: Final answer
    x = 2,971.19

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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.