Home / 1,926.43-2,658.77-1,140.73

Finding the Fourth Proportional to 1,926.43, 2,658.77 and 1,140.73

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Solution

The fourth proportional to 1,926.43, 2,658.77 and 1,140.73 is: 1,574.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926.43 : 2,658.77 = 1,140.73 : x
  2. Step 2: Convert to fraction form
    1,926.43/2,658.77 = 1,140.73/x
  3. Step 3: Cross multiply
    1,926.43x = 2,658.77 × 1,140.73
  4. Step 4: Simplify right side
    1,926.43x = 3,032,938.70
  5. Step 5: Solve for x
    x = 3,032,938.70/1,926.43
  6. Step 6: Final answer
    x = 1,574.38

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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.