Home / 1,350.31-2,021.95-1,156.55

Finding the Fourth Proportional to 1,350.31, 2,021.95 and 1,156.55

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Solution

The fourth proportional to 1,350.31, 2,021.95 and 1,156.55 is: 1,731.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,350.31 : 2,021.95 = 1,156.55 : x
  2. Step 2: Convert to fraction form
    1,350.31/2,021.95 = 1,156.55/x
  3. Step 3: Cross multiply
    1,350.31x = 2,021.95 × 1,156.55
  4. Step 4: Simplify right side
    1,350.31x = 2,338,486.27
  5. Step 5: Solve for x
    x = 2,338,486.27/1,350.31
  6. Step 6: Final answer
    x = 1,731.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.