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Finding the Fourth Proportional to 6,287.70, 9,423.45 and 2,993.70

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Solution

The fourth proportional to 6,287.70, 9,423.45 and 2,993.70 is: 4,486.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,287.70 : 9,423.45 = 2,993.70 : x
  2. Step 2: Convert to fraction form
    6,287.70/9,423.45 = 2,993.70/x
  3. Step 3: Cross multiply
    6,287.70x = 9,423.45 × 2,993.70
  4. Step 4: Simplify right side
    6,287.70x = 28,210,982.27
  5. Step 5: Solve for x
    x = 28,210,982.27/6,287.70
  6. Step 6: Final answer
    x = 4,486.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.