Home / 3,617.76-5,427.36-1,277.66

Finding the Fourth Proportional to 3,617.76, 5,427.36 and 1,277.66

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Solution

The fourth proportional to 3,617.76, 5,427.36 and 1,277.66 is: 1,916.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617.76 : 5,427.36 = 1,277.66 : x
  2. Step 2: Convert to fraction form
    3,617.76/5,427.36 = 1,277.66/x
  3. Step 3: Cross multiply
    3,617.76x = 5,427.36 × 1,277.66
  4. Step 4: Simplify right side
    3,617.76x = 6,934,320.78
  5. Step 5: Solve for x
    x = 6,934,320.78/3,617.76
  6. Step 6: Final answer
    x = 1,916.74

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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.