Home / 1,022.24-1,531.36-969.76

Finding the Fourth Proportional to 1,022.24, 1,531.36 and 969.76

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Solution

The fourth proportional to 1,022.24, 1,531.36 and 969.76 is: 1,452.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022.24 : 1,531.36 = 969.76 : x
  2. Step 2: Convert to fraction form
    1,022.24/1,531.36 = 969.76/x
  3. Step 3: Cross multiply
    1,022.24x = 1,531.36 × 969.76
  4. Step 4: Simplify right side
    1,022.24x = 1,485,051.67
  5. Step 5: Solve for x
    x = 1,485,051.67/1,022.24
  6. Step 6: Final answer
    x = 1,452.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.