Home / 3,888.28-5,367.18-3,302.20

Finding the Fourth Proportional to 3,888.28, 5,367.18 and 3,302.20

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Solution

The fourth proportional to 3,888.28, 5,367.18 and 3,302.20 is: 4,558.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888.28 : 5,367.18 = 3,302.20 : x
  2. Step 2: Convert to fraction form
    3,888.28/5,367.18 = 3,302.20/x
  3. Step 3: Cross multiply
    3,888.28x = 5,367.18 × 3,302.20
  4. Step 4: Simplify right side
    3,888.28x = 17,723,501.80
  5. Step 5: Solve for x
    x = 17,723,501.80/3,888.28
  6. Step 6: Final answer
    x = 4,558.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.