Home / 1,340.21-1,849.41-750.68

Finding the Fourth Proportional to 1,340.21, 1,849.41 and 750.68

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Solution

The fourth proportional to 1,340.21, 1,849.41 and 750.68 is: 1,035.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340.21 : 1,849.41 = 750.68 : x
  2. Step 2: Convert to fraction form
    1,340.21/1,849.41 = 750.68/x
  3. Step 3: Cross multiply
    1,340.21x = 1,849.41 × 750.68
  4. Step 4: Simplify right side
    1,340.21x = 1,388,312.79
  5. Step 5: Solve for x
    x = 1,388,312.79/1,340.21
  6. Step 6: Final answer
    x = 1,035.89

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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.