Home / 1,729.86-2,386.94-1,031.24

Finding the Fourth Proportional to 1,729.86, 2,386.94 and 1,031.24

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Solution

The fourth proportional to 1,729.86, 2,386.94 and 1,031.24 is: 1,422.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.86 : 2,386.94 = 1,031.24 : x
  2. Step 2: Convert to fraction form
    1,729.86/2,386.94 = 1,031.24/x
  3. Step 3: Cross multiply
    1,729.86x = 2,386.94 × 1,031.24
  4. Step 4: Simplify right side
    1,729.86x = 2,461,508.01
  5. Step 5: Solve for x
    x = 2,461,508.01/1,729.86
  6. Step 6: Final answer
    x = 1,422.95

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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.