Home / 2,997.29-4,139.48-2,281.49

Finding the Fourth Proportional to 2,997.29, 4,139.48 and 2,281.49

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Solution

The fourth proportional to 2,997.29, 4,139.48 and 2,281.49 is: 3,150.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,997.29 : 4,139.48 = 2,281.49 : x
  2. Step 2: Convert to fraction form
    2,997.29/4,139.48 = 2,281.49/x
  3. Step 3: Cross multiply
    2,997.29x = 4,139.48 × 2,281.49
  4. Step 4: Simplify right side
    2,997.29x = 9,444,192.57
  5. Step 5: Solve for x
    x = 9,444,192.57/2,997.29
  6. Step 6: Final answer
    x = 3,150.92

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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.