Home / 1,283.04-1,765.80-1,224.72

Finding the Fourth Proportional to 1,283.04, 1,765.80 and 1,224.72

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Solution

The fourth proportional to 1,283.04, 1,765.80 and 1,224.72 is: 1,685.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283.04 : 1,765.80 = 1,224.72 : x
  2. Step 2: Convert to fraction form
    1,283.04/1,765.80 = 1,224.72/x
  3. Step 3: Cross multiply
    1,283.04x = 1,765.80 × 1,224.72
  4. Step 4: Simplify right side
    1,283.04x = 2,162,610.58
  5. Step 5: Solve for x
    x = 2,162,610.58/1,283.04
  6. Step 6: Final answer
    x = 1,685.54

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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.