Home / 1,729.24-2,386.78-1,031.04

Finding the Fourth Proportional to 1,729.24, 2,386.78 and 1,031.04

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Solution

The fourth proportional to 1,729.24, 2,386.78 and 1,031.04 is: 1,423.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.24 : 2,386.78 = 1,031.04 : x
  2. Step 2: Convert to fraction form
    1,729.24/2,386.78 = 1,031.04/x
  3. Step 3: Cross multiply
    1,729.24x = 2,386.78 × 1,031.04
  4. Step 4: Simplify right side
    1,729.24x = 2,460,865.65
  5. Step 5: Solve for x
    x = 2,460,865.65/1,729.24
  6. Step 6: Final answer
    x = 1,423.09

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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.