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Finding the Fourth Proportional to 7,287.16, 10,056.24 and 3,975.16

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Solution

The fourth proportional to 7,287.16, 10,056.24 and 3,975.16 is: 5,485.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,287.16 : 10,056.24 = 3,975.16 : x
  2. Step 2: Convert to fraction form
    7,287.16/10,056.24 = 3,975.16/x
  3. Step 3: Cross multiply
    7,287.16x = 10,056.24 × 3,975.16
  4. Step 4: Simplify right side
    7,287.16x = 39,975,163.00
  5. Step 5: Solve for x
    x = 39,975,163.00/7,287.16
  6. Step 6: Final answer
    x = 5,485.70

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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.