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Finding the Fourth Proportional to 3,330.40, 4,976.12 and 3,330.40

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Solution

The fourth proportional to 3,330.40, 4,976.12 and 3,330.40 is: 4,976.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330.40 : 4,976.12 = 3,330.40 : x
  2. Step 2: Convert to fraction form
    3,330.40/4,976.12 = 3,330.40/x
  3. Step 3: Cross multiply
    3,330.40x = 4,976.12 × 3,330.40
  4. Step 4: Simplify right side
    3,330.40x = 16,572,470.05
  5. Step 5: Solve for x
    x = 16,572,470.05/3,330.40
  6. Step 6: Final answer
    x = 4,976.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.