Home / 3,618.17-5,427.30-1,276.53

Finding the Fourth Proportional to 3,618.17, 5,427.30 and 1,276.53

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Solution

The fourth proportional to 3,618.17, 5,427.30 and 1,276.53 is: 1,914.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.17 : 5,427.30 = 1,276.53 : x
  2. Step 2: Convert to fraction form
    3,618.17/5,427.30 = 1,276.53/x
  3. Step 3: Cross multiply
    3,618.17x = 5,427.30 × 1,276.53
  4. Step 4: Simplify right side
    3,618.17x = 6,928,111.27
  5. Step 5: Solve for x
    x = 6,928,111.27/3,618.17
  6. Step 6: Final answer
    x = 1,914.81

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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.