Home / 1,926.87-2,659.08-1,087.57

Finding the Fourth Proportional to 1,926.87, 2,659.08 and 1,087.57

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Solution

The fourth proportional to 1,926.87, 2,659.08 and 1,087.57 is: 1,500.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926.87 : 2,659.08 = 1,087.57 : x
  2. Step 2: Convert to fraction form
    1,926.87/2,659.08 = 1,087.57/x
  3. Step 3: Cross multiply
    1,926.87x = 2,659.08 × 1,087.57
  4. Step 4: Simplify right side
    1,926.87x = 2,891,935.64
  5. Step 5: Solve for x
    x = 2,891,935.64/1,926.87
  6. Step 6: Final answer
    x = 1,500.85

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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.