Home / 1,876.20-2,811.97-1,055.06

Finding the Fourth Proportional to 1,876.20, 2,811.97 and 1,055.06

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Solution

The fourth proportional to 1,876.20, 2,811.97 and 1,055.06 is: 1,581.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,876.20 : 2,811.97 = 1,055.06 : x
  2. Step 2: Convert to fraction form
    1,876.20/2,811.97 = 1,055.06/x
  3. Step 3: Cross multiply
    1,876.20x = 2,811.97 × 1,055.06
  4. Step 4: Simplify right side
    1,876.20x = 2,966,797.07
  5. Step 5: Solve for x
    x = 2,966,797.07/1,876.20
  6. Step 6: Final answer
    x = 1,581.28

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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.