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Finding the Fourth Proportional to 4,604.40, 6,318.72 and 4,312.80

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Solution

The fourth proportional to 4,604.40, 6,318.72 and 4,312.80 is: 5,918.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,604.40 : 6,318.72 = 4,312.80 : x
  2. Step 2: Convert to fraction form
    4,604.40/6,318.72 = 4,312.80/x
  3. Step 3: Cross multiply
    4,604.40x = 6,318.72 × 4,312.80
  4. Step 4: Simplify right side
    4,604.40x = 27,251,375.62
  5. Step 5: Solve for x
    x = 27,251,375.62/4,604.40
  6. Step 6: Final answer
    x = 5,918.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.