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Finding the Fourth Proportional to 6,762.52, 10,118.26 and 3,990.70

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Solution

The fourth proportional to 6,762.52, 10,118.26 and 3,990.70 is: 5,970.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,762.52 : 10,118.26 = 3,990.70 : x
  2. Step 2: Convert to fraction form
    6,762.52/10,118.26 = 3,990.70/x
  3. Step 3: Cross multiply
    6,762.52x = 10,118.26 × 3,990.70
  4. Step 4: Simplify right side
    6,762.52x = 40,378,940.18
  5. Step 5: Solve for x
    x = 40,378,940.18/6,762.52
  6. Step 6: Final answer
    x = 5,970.99

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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.