Home / 2,581.07-3,561.84-1,402.11

Finding the Fourth Proportional to 2,581.07, 3,561.84 and 1,402.11

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Solution

The fourth proportional to 2,581.07, 3,561.84 and 1,402.11 is: 1,934.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,581.07 : 3,561.84 = 1,402.11 : x
  2. Step 2: Convert to fraction form
    2,581.07/3,561.84 = 1,402.11/x
  3. Step 3: Cross multiply
    2,581.07x = 3,561.84 × 1,402.11
  4. Step 4: Simplify right side
    2,581.07x = 4,994,091.48
  5. Step 5: Solve for x
    x = 4,994,091.48/2,581.07
  6. Step 6: Final answer
    x = 1,934.90

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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.