Home / 2,581.00-3,561.80-1,402.08

Finding the Fourth Proportional to 2,581.00, 3,561.80 and 1,402.08

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Solution

The fourth proportional to 2,581.00, 3,561.80 and 1,402.08 is: 1,934.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,581.00 : 3,561.80 = 1,402.08 : x
  2. Step 2: Convert to fraction form
    2,581.00/3,561.80 = 1,402.08/x
  3. Step 3: Cross multiply
    2,581.00x = 3,561.80 × 1,402.08
  4. Step 4: Simplify right side
    2,581.00x = 4,993,908.18
  5. Step 5: Solve for x
    x = 4,993,908.18/2,581.00
  6. Step 6: Final answer
    x = 1,934.88

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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.