Home / 1,931.14-2,898.33-1,239.13

Finding the Fourth Proportional to 1,931.14, 2,898.33 and 1,239.13

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Solution

The fourth proportional to 1,931.14, 2,898.33 and 1,239.13 is: 1,859.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931.14 : 2,898.33 = 1,239.13 : x
  2. Step 2: Convert to fraction form
    1,931.14/2,898.33 = 1,239.13/x
  3. Step 3: Cross multiply
    1,931.14x = 2,898.33 × 1,239.13
  4. Step 4: Simplify right side
    1,931.14x = 3,591,407.65
  5. Step 5: Solve for x
    x = 3,591,407.65/1,931.14
  6. Step 6: Final answer
    x = 1,859.73

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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.