Home / 2,162.92-3,242.46-1,298.92

Finding the Fourth Proportional to 2,162.92, 3,242.46 and 1,298.92

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Solution

The fourth proportional to 2,162.92, 3,242.46 and 1,298.92 is: 1,947.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,162.92 : 3,242.46 = 1,298.92 : x
  2. Step 2: Convert to fraction form
    2,162.92/3,242.46 = 1,298.92/x
  3. Step 3: Cross multiply
    2,162.92x = 3,242.46 × 1,298.92
  4. Step 4: Simplify right side
    2,162.92x = 4,211,696.14
  5. Step 5: Solve for x
    x = 4,211,696.14/2,162.92
  6. Step 6: Final answer
    x = 1,947.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.