Home / 1,292.49-1,929.36-1,196.13

Finding the Fourth Proportional to 1,292.49, 1,929.36 and 1,196.13

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Solution

The fourth proportional to 1,292.49, 1,929.36 and 1,196.13 is: 1,785.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292.49 : 1,929.36 = 1,196.13 : x
  2. Step 2: Convert to fraction form
    1,292.49/1,929.36 = 1,196.13/x
  3. Step 3: Cross multiply
    1,292.49x = 1,929.36 × 1,196.13
  4. Step 4: Simplify right side
    1,292.49x = 2,307,757.45
  5. Step 5: Solve for x
    x = 2,307,757.45/1,292.49
  6. Step 6: Final answer
    x = 1,785.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.