Home / 3,617.60-5,427.24-1,426.16

Finding the Fourth Proportional to 3,617.60, 5,427.24 and 1,426.16

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Solution

The fourth proportional to 3,617.60, 5,427.24 and 1,426.16 is: 2,139.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617.60 : 5,427.24 = 1,426.16 : x
  2. Step 2: Convert to fraction form
    3,617.60/5,427.24 = 1,426.16/x
  3. Step 3: Cross multiply
    3,617.60x = 5,427.24 × 1,426.16
  4. Step 4: Simplify right side
    3,617.60x = 7,740,112.60
  5. Step 5: Solve for x
    x = 7,740,112.60/3,617.60
  6. Step 6: Final answer
    x = 2,139.57

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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.