Home / 1,340.18-1,849.29-750.68

Finding the Fourth Proportional to 1,340.18, 1,849.29 and 750.68

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Solution

The fourth proportional to 1,340.18, 1,849.29 and 750.68 is: 1,035.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340.18 : 1,849.29 = 750.68 : x
  2. Step 2: Convert to fraction form
    1,340.18/1,849.29 = 750.68/x
  3. Step 3: Cross multiply
    1,340.18x = 1,849.29 × 750.68
  4. Step 4: Simplify right side
    1,340.18x = 1,388,225.02
  5. Step 5: Solve for x
    x = 1,388,225.02/1,340.18
  6. Step 6: Final answer
    x = 1,035.85

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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.