Home / 2,883.18-3,979.16-1,997.45

Finding the Fourth Proportional to 2,883.18, 3,979.16 and 1,997.45

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Solution

The fourth proportional to 2,883.18, 3,979.16 and 1,997.45 is: 2,756.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,883.18 : 3,979.16 = 1,997.45 : x
  2. Step 2: Convert to fraction form
    2,883.18/3,979.16 = 1,997.45/x
  3. Step 3: Cross multiply
    2,883.18x = 3,979.16 × 1,997.45
  4. Step 4: Simplify right side
    2,883.18x = 7,948,165.67
  5. Step 5: Solve for x
    x = 7,948,165.67/2,883.18
  6. Step 6: Final answer
    x = 2,756.73

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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.