Home / 1,166.30-1,749.94-646.66

Finding the Fourth Proportional to 1,166.30, 1,749.94 and 646.66

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Solution

The fourth proportional to 1,166.30, 1,749.94 and 646.66 is: 970.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166.30 : 1,749.94 = 646.66 : x
  2. Step 2: Convert to fraction form
    1,166.30/1,749.94 = 646.66/x
  3. Step 3: Cross multiply
    1,166.30x = 1,749.94 × 646.66
  4. Step 4: Simplify right side
    1,166.30x = 1,131,616.20
  5. Step 5: Solve for x
    x = 1,131,616.20/1,166.30
  6. Step 6: Final answer
    x = 970.26

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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.