Home / 1,303.20-1,961.76-1,169.28

Finding the Fourth Proportional to 1,303.20, 1,961.76 and 1,169.28

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Solution

The fourth proportional to 1,303.20, 1,961.76 and 1,169.28 is: 1,760.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303.20 : 1,961.76 = 1,169.28 : x
  2. Step 2: Convert to fraction form
    1,303.20/1,961.76 = 1,169.28/x
  3. Step 3: Cross multiply
    1,303.20x = 1,961.76 × 1,169.28
  4. Step 4: Simplify right side
    1,303.20x = 2,293,846.73
  5. Step 5: Solve for x
    x = 2,293,846.73/1,303.20
  6. Step 6: Final answer
    x = 1,760.16

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.