Home / 3,788.27-5,225.38-2,888.70

Finding the Fourth Proportional to 3,788.27, 5,225.38 and 2,888.70

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Solution

The fourth proportional to 3,788.27, 5,225.38 and 2,888.70 is: 3,984.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788.27 : 5,225.38 = 2,888.70 : x
  2. Step 2: Convert to fraction form
    3,788.27/5,225.38 = 2,888.70/x
  3. Step 3: Cross multiply
    3,788.27x = 5,225.38 × 2,888.70
  4. Step 4: Simplify right side
    3,788.27x = 15,094,528.39
  5. Step 5: Solve for x
    x = 15,094,528.39/3,788.27
  6. Step 6: Final answer
    x = 3,984.55

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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.