Home / 1,219.92-1,821.08-1,166.72

Finding the Fourth Proportional to 1,219.92, 1,821.08 and 1,166.72

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Solution

The fourth proportional to 1,219.92, 1,821.08 and 1,166.72 is: 1,741.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219.92 : 1,821.08 = 1,166.72 : x
  2. Step 2: Convert to fraction form
    1,219.92/1,821.08 = 1,166.72/x
  3. Step 3: Cross multiply
    1,219.92x = 1,821.08 × 1,166.72
  4. Step 4: Simplify right side
    1,219.92x = 2,124,690.46
  5. Step 5: Solve for x
    x = 2,124,690.46/1,219.92
  6. Step 6: Final answer
    x = 1,741.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.