Home / 3,869.16-5,335.52-3,311.48

Finding the Fourth Proportional to 3,869.16, 5,335.52 and 3,311.48

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Solution

The fourth proportional to 3,869.16, 5,335.52 and 3,311.48 is: 4,566.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869.16 : 5,335.52 = 3,311.48 : x
  2. Step 2: Convert to fraction form
    3,869.16/5,335.52 = 3,311.48/x
  3. Step 3: Cross multiply
    3,869.16x = 5,335.52 × 3,311.48
  4. Step 4: Simplify right side
    3,869.16x = 17,668,467.77
  5. Step 5: Solve for x
    x = 17,668,467.77/3,869.16
  6. Step 6: Final answer
    x = 4,566.49

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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.