Home / 1,117.45-1,675.27-965.17

Finding the Fourth Proportional to 1,117.45, 1,675.27 and 965.17

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Solution

The fourth proportional to 1,117.45, 1,675.27 and 965.17 is: 1,446.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117.45 : 1,675.27 = 965.17 : x
  2. Step 2: Convert to fraction form
    1,117.45/1,675.27 = 965.17/x
  3. Step 3: Cross multiply
    1,117.45x = 1,675.27 × 965.17
  4. Step 4: Simplify right side
    1,117.45x = 1,616,920.35
  5. Step 5: Solve for x
    x = 1,616,920.35/1,117.45
  6. Step 6: Final answer
    x = 1,446.97

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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.