Home / 1,340.12-1,849.39-750.67

Finding the Fourth Proportional to 1,340.12, 1,849.39 and 750.67

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Solution

The fourth proportional to 1,340.12, 1,849.39 and 750.67 is: 1,035.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340.12 : 1,849.39 = 750.67 : x
  2. Step 2: Convert to fraction form
    1,340.12/1,849.39 = 750.67/x
  3. Step 3: Cross multiply
    1,340.12x = 1,849.39 × 750.67
  4. Step 4: Simplify right side
    1,340.12x = 1,388,275.09
  5. Step 5: Solve for x
    x = 1,388,275.09/1,340.12
  6. Step 6: Final answer
    x = 1,035.93

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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.