Home / 2,983.28-4,116.80-1,656.88

Finding the Fourth Proportional to 2,983.28, 4,116.80 and 1,656.88

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Solution

The fourth proportional to 2,983.28, 4,116.80 and 1,656.88 is: 2,286.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,983.28 : 4,116.80 = 1,656.88 : x
  2. Step 2: Convert to fraction form
    2,983.28/4,116.80 = 1,656.88/x
  3. Step 3: Cross multiply
    2,983.28x = 4,116.80 × 1,656.88
  4. Step 4: Simplify right side
    2,983.28x = 6,821,035.30
  5. Step 5: Solve for x
    x = 6,821,035.30/2,983.28
  6. Step 6: Final answer
    x = 2,286.42

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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.