Home / 1,299.38-1,948.01-750.94

Finding the Fourth Proportional to 1,299.38, 1,948.01 and 750.94

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Solution

The fourth proportional to 1,299.38, 1,948.01 and 750.94 is: 1,125.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299.38 : 1,948.01 = 750.94 : x
  2. Step 2: Convert to fraction form
    1,299.38/1,948.01 = 750.94/x
  3. Step 3: Cross multiply
    1,299.38x = 1,948.01 × 750.94
  4. Step 4: Simplify right side
    1,299.38x = 1,462,830.00
  5. Step 5: Solve for x
    x = 1,462,830.00/1,299.38
  6. Step 6: Final answer
    x = 1,125.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.