Home / 1,867.68-2,577.48-1,081.56

Finding the Fourth Proportional to 1,867.68, 2,577.48 and 1,081.56

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Solution

The fourth proportional to 1,867.68, 2,577.48 and 1,081.56 is: 1,492.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,867.68 : 2,577.48 = 1,081.56 : x
  2. Step 2: Convert to fraction form
    1,867.68/2,577.48 = 1,081.56/x
  3. Step 3: Cross multiply
    1,867.68x = 2,577.48 × 1,081.56
  4. Step 4: Simplify right side
    1,867.68x = 2,787,699.27
  5. Step 5: Solve for x
    x = 2,787,699.27/1,867.68
  6. Step 6: Final answer
    x = 1,492.60

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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.