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Finding the Fourth Proportional to 7,104.53, 9,803.89 and 3,960.11

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Solution

The fourth proportional to 7,104.53, 9,803.89 and 3,960.11 is: 5,464.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,104.53 : 9,803.89 = 3,960.11 : x
  2. Step 2: Convert to fraction form
    7,104.53/9,803.89 = 3,960.11/x
  3. Step 3: Cross multiply
    7,104.53x = 9,803.89 × 3,960.11
  4. Step 4: Simplify right side
    7,104.53x = 38,824,482.83
  5. Step 5: Solve for x
    x = 38,824,482.83/7,104.53
  6. Step 6: Final answer
    x = 5,464.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.