Home / 1,990.08-2,746.24-1,105.92

Finding the Fourth Proportional to 1,990.08, 2,746.24 and 1,105.92

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Solution

The fourth proportional to 1,990.08, 2,746.24 and 1,105.92 is: 1,526.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990.08 : 2,746.24 = 1,105.92 : x
  2. Step 2: Convert to fraction form
    1,990.08/2,746.24 = 1,105.92/x
  3. Step 3: Cross multiply
    1,990.08x = 2,746.24 × 1,105.92
  4. Step 4: Simplify right side
    1,990.08x = 3,037,121.74
  5. Step 5: Solve for x
    x = 3,037,121.74/1,990.08
  6. Step 6: Final answer
    x = 1,526.13

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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.