Home / 1,729.98-2,386.86-1,031.46

Finding the Fourth Proportional to 1,729.98, 2,386.86 and 1,031.46

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Solution

The fourth proportional to 1,729.98, 2,386.86 and 1,031.46 is: 1,423.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.98 : 2,386.86 = 1,031.46 : x
  2. Step 2: Convert to fraction form
    1,729.98/2,386.86 = 1,031.46/x
  3. Step 3: Cross multiply
    1,729.98x = 2,386.86 × 1,031.46
  4. Step 4: Simplify right side
    1,729.98x = 2,461,950.62
  5. Step 5: Solve for x
    x = 2,461,950.62/1,729.98
  6. Step 6: Final answer
    x = 1,423.11

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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.