Home / 2,892.25-3,990.30-1,633.15

Finding the Fourth Proportional to 2,892.25, 3,990.30 and 1,633.15

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Solution

The fourth proportional to 2,892.25, 3,990.30 and 1,633.15 is: 2,253.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,892.25 : 3,990.30 = 1,633.15 : x
  2. Step 2: Convert to fraction form
    2,892.25/3,990.30 = 1,633.15/x
  3. Step 3: Cross multiply
    2,892.25x = 3,990.30 × 1,633.15
  4. Step 4: Simplify right side
    2,892.25x = 6,516,758.45
  5. Step 5: Solve for x
    x = 6,516,758.45/2,892.25
  6. Step 6: Final answer
    x = 2,253.18

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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.