Home / 1,340.34-1,849.75-750.91

Finding the Fourth Proportional to 1,340.34, 1,849.75 and 750.91

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Solution

The fourth proportional to 1,340.34, 1,849.75 and 750.91 is: 1,036.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340.34 : 1,849.75 = 750.91 : x
  2. Step 2: Convert to fraction form
    1,340.34/1,849.75 = 750.91/x
  3. Step 3: Cross multiply
    1,340.34x = 1,849.75 × 750.91
  4. Step 4: Simplify right side
    1,340.34x = 1,388,995.77
  5. Step 5: Solve for x
    x = 1,388,995.77/1,340.34
  6. Step 6: Final answer
    x = 1,036.30

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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.