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Finding the Fourth Proportional to 7,287.61, 10,927.92 and 3,950.53

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Solution

The fourth proportional to 7,287.61, 10,927.92 and 3,950.53 is: 5,923.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,287.61 : 10,927.92 = 3,950.53 : x
  2. Step 2: Convert to fraction form
    7,287.61/10,927.92 = 3,950.53/x
  3. Step 3: Cross multiply
    7,287.61x = 10,927.92 × 3,950.53
  4. Step 4: Simplify right side
    7,287.61x = 43,171,075.80
  5. Step 5: Solve for x
    x = 43,171,075.80/7,287.61
  6. Step 6: Final answer
    x = 5,923.90

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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.