Home / 7,287.12-10,056.24-3,975.12

Finding the Fourth Proportional to 7,287.12, 10,056.24 and 3,975.12

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Solution

The fourth proportional to 7,287.12, 10,056.24 and 3,975.12 is: 5,485.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,287.12 : 10,056.24 = 3,975.12 : x
  2. Step 2: Convert to fraction form
    7,287.12/10,056.24 = 3,975.12/x
  3. Step 3: Cross multiply
    7,287.12x = 10,056.24 × 3,975.12
  4. Step 4: Simplify right side
    7,287.12x = 39,974,760.75
  5. Step 5: Solve for x
    x = 39,974,760.75/7,287.12
  6. Step 6: Final answer
    x = 5,485.67

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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.