Home / 3,865.32-5,331.78-2,465.64

Finding the Fourth Proportional to 3,865.32, 5,331.78 and 2,465.64

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Solution

The fourth proportional to 3,865.32, 5,331.78 and 2,465.64 is: 3,401.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865.32 : 5,331.78 = 2,465.64 : x
  2. Step 2: Convert to fraction form
    3,865.32/5,331.78 = 2,465.64/x
  3. Step 3: Cross multiply
    3,865.32x = 5,331.78 × 2,465.64
  4. Step 4: Simplify right side
    3,865.32x = 13,146,250.04
  5. Step 5: Solve for x
    x = 13,146,250.04/3,865.32
  6. Step 6: Final answer
    x = 3,401.08

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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.