Home / 3,187.78-4,397.80-2,301.64

Finding the Fourth Proportional to 3,187.78, 4,397.80 and 2,301.64

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Solution

The fourth proportional to 3,187.78, 4,397.80 and 2,301.64 is: 3,175.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.78 : 4,397.80 = 2,301.64 : x
  2. Step 2: Convert to fraction form
    3,187.78/4,397.80 = 2,301.64/x
  3. Step 3: Cross multiply
    3,187.78x = 4,397.80 × 2,301.64
  4. Step 4: Simplify right side
    3,187.78x = 10,122,152.39
  5. Step 5: Solve for x
    x = 10,122,152.39/3,187.78
  6. Step 6: Final answer
    x = 3,175.30

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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.