Home / 3,618.28-5,427.61-1,021.42

Finding the Fourth Proportional to 3,618.28, 5,427.61 and 1,021.42

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Solution

The fourth proportional to 3,618.28, 5,427.61 and 1,021.42 is: 1,532.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.28 : 5,427.61 = 1,021.42 : x
  2. Step 2: Convert to fraction form
    3,618.28/5,427.61 = 1,021.42/x
  3. Step 3: Cross multiply
    3,618.28x = 5,427.61 × 1,021.42
  4. Step 4: Simplify right side
    3,618.28x = 5,543,869.41
  5. Step 5: Solve for x
    x = 5,543,869.41/3,618.28
  6. Step 6: Final answer
    x = 1,532.18

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1.5x scale

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.