Home / 1,876.38-2,589.40-1,090.88

Finding the Fourth Proportional to 1,876.38, 2,589.40 and 1,090.88

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Solution

The fourth proportional to 1,876.38, 2,589.40 and 1,090.88 is: 1,505.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,876.38 : 2,589.40 = 1,090.88 : x
  2. Step 2: Convert to fraction form
    1,876.38/2,589.40 = 1,090.88/x
  3. Step 3: Cross multiply
    1,876.38x = 2,589.40 × 1,090.88
  4. Step 4: Simplify right side
    1,876.38x = 2,824,724.67
  5. Step 5: Solve for x
    x = 2,824,724.67/1,876.38
  6. Step 6: Final answer
    x = 1,505.41

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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.