Home / 3,311.64-4,987.28-3,016.40

Finding the Fourth Proportional to 3,311.64, 4,987.28 and 3,016.40

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Solution

The fourth proportional to 3,311.64, 4,987.28 and 3,016.40 is: 4,542.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.64 : 4,987.28 = 3,016.40 : x
  2. Step 2: Convert to fraction form
    3,311.64/4,987.28 = 3,016.40/x
  3. Step 3: Cross multiply
    3,311.64x = 4,987.28 × 3,016.40
  4. Step 4: Simplify right side
    3,311.64x = 15,043,631.39
  5. Step 5: Solve for x
    x = 15,043,631.39/3,311.64
  6. Step 6: Final answer
    x = 4,542.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.