Home / 1,253.08-1,880.76-1,177.72

Finding the Fourth Proportional to 1,253.08, 1,880.76 and 1,177.72

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Solution

The fourth proportional to 1,253.08, 1,880.76 and 1,177.72 is: 1,767.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253.08 : 1,880.76 = 1,177.72 : x
  2. Step 2: Convert to fraction form
    1,253.08/1,880.76 = 1,177.72/x
  3. Step 3: Cross multiply
    1,253.08x = 1,880.76 × 1,177.72
  4. Step 4: Simplify right side
    1,253.08x = 2,215,008.67
  5. Step 5: Solve for x
    x = 2,215,008.67/1,253.08
  6. Step 6: Final answer
    x = 1,767.65

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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.