Home / 1,926.66-2,658.78-1,087.32

Finding the Fourth Proportional to 1,926.66, 2,658.78 and 1,087.32

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Solution

The fourth proportional to 1,926.66, 2,658.78 and 1,087.32 is: 1,500.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926.66 : 2,658.78 = 1,087.32 : x
  2. Step 2: Convert to fraction form
    1,926.66/2,658.78 = 1,087.32/x
  3. Step 3: Cross multiply
    1,926.66x = 2,658.78 × 1,087.32
  4. Step 4: Simplify right side
    1,926.66x = 2,890,944.67
  5. Step 5: Solve for x
    x = 2,890,944.67/1,926.66
  6. Step 6: Final answer
    x = 1,500.50

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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.