Home / 3,618.46-5,428.50-1,426.60

Finding the Fourth Proportional to 3,618.46, 5,428.50 and 1,426.60

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Solution

The fourth proportional to 3,618.46, 5,428.50 and 1,426.60 is: 2,140.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.46 : 5,428.50 = 1,426.60 : x
  2. Step 2: Convert to fraction form
    3,618.46/5,428.50 = 1,426.60/x
  3. Step 3: Cross multiply
    3,618.46x = 5,428.50 × 1,426.60
  4. Step 4: Simplify right side
    3,618.46x = 7,744,298.10
  5. Step 5: Solve for x
    x = 7,744,298.10/3,618.46
  6. Step 6: Final answer
    x = 2,140.22

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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.