Home / 3,789.20-5,225.64-2,389.52

Finding the Fourth Proportional to 3,789.20, 5,225.64 and 2,389.52

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Solution

The fourth proportional to 3,789.20, 5,225.64 and 2,389.52 is: 3,295.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.20 : 5,225.64 = 2,389.52 : x
  2. Step 2: Convert to fraction form
    3,789.20/5,225.64 = 2,389.52/x
  3. Step 3: Cross multiply
    3,789.20x = 5,225.64 × 2,389.52
  4. Step 4: Simplify right side
    3,789.20x = 12,486,771.29
  5. Step 5: Solve for x
    x = 12,486,771.29/3,789.20
  6. Step 6: Final answer
    x = 3,295.36

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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.