Home / 2,841.40-3,921.16-1,662.24

Finding the Fourth Proportional to 2,841.40, 3,921.16 and 1,662.24

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Solution

The fourth proportional to 2,841.40, 3,921.16 and 1,662.24 is: 2,293.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,841.40 : 3,921.16 = 1,662.24 : x
  2. Step 2: Convert to fraction form
    2,841.40/3,921.16 = 1,662.24/x
  3. Step 3: Cross multiply
    2,841.40x = 3,921.16 × 1,662.24
  4. Step 4: Simplify right side
    2,841.40x = 6,517,909.00
  5. Step 5: Solve for x
    x = 6,517,909.00/2,841.40
  6. Step 6: Final answer
    x = 2,293.91

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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.