Home / 1,340.21-1,849.23-750.63

Finding the Fourth Proportional to 1,340.21, 1,849.23 and 750.63

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Solution

The fourth proportional to 1,340.21, 1,849.23 and 750.63 is: 1,035.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340.21 : 1,849.23 = 750.63 : x
  2. Step 2: Convert to fraction form
    1,340.21/1,849.23 = 750.63/x
  3. Step 3: Cross multiply
    1,340.21x = 1,849.23 × 750.63
  4. Step 4: Simplify right side
    1,340.21x = 1,388,094.45
  5. Step 5: Solve for x
    x = 1,388,094.45/1,340.21
  6. Step 6: Final answer
    x = 1,035.73

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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.