Home / 3,838.28-5,752.68-1,988.33

Finding the Fourth Proportional to 3,838.28, 5,752.68 and 1,988.33

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Solution

The fourth proportional to 3,838.28, 5,752.68 and 1,988.33 is: 2,980.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,838.28 : 5,752.68 = 1,988.33 : x
  2. Step 2: Convert to fraction form
    3,838.28/5,752.68 = 1,988.33/x
  3. Step 3: Cross multiply
    3,838.28x = 5,752.68 × 1,988.33
  4. Step 4: Simplify right side
    3,838.28x = 11,438,211.84
  5. Step 5: Solve for x
    x = 11,438,211.84/3,838.28
  6. Step 6: Final answer
    x = 2,980.04

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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.