Home / 3,964.21-5,465.28-3,402.25

Finding the Fourth Proportional to 3,964.21, 5,465.28 and 3,402.25

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Solution

The fourth proportional to 3,964.21, 5,465.28 and 3,402.25 is: 4,690.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,964.21 : 5,465.28 = 3,402.25 : x
  2. Step 2: Convert to fraction form
    3,964.21/5,465.28 = 3,402.25/x
  3. Step 3: Cross multiply
    3,964.21x = 5,465.28 × 3,402.25
  4. Step 4: Simplify right side
    3,964.21x = 18,594,248.88
  5. Step 5: Solve for x
    x = 18,594,248.88/3,964.21
  6. Step 6: Final answer
    x = 4,690.53

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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.