Home / 3,182.96-4,386.56-2,864.90

Finding the Fourth Proportional to 3,182.96, 4,386.56 and 2,864.90

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Solution

The fourth proportional to 3,182.96, 4,386.56 and 2,864.90 is: 3,948.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,182.96 : 4,386.56 = 2,864.90 : x
  2. Step 2: Convert to fraction form
    3,182.96/4,386.56 = 2,864.90/x
  3. Step 3: Cross multiply
    3,182.96x = 4,386.56 × 2,864.90
  4. Step 4: Simplify right side
    3,182.96x = 12,567,052.39
  5. Step 5: Solve for x
    x = 12,567,052.39/3,182.96
  6. Step 6: Final answer
    x = 3,948.23

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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.