Home / 7,231.29-9,975.87-4,247.07

Finding the Fourth Proportional to 7,231.29, 9,975.87 and 4,247.07

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Solution

The fourth proportional to 7,231.29, 9,975.87 and 4,247.07 is: 5,859.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,231.29 : 9,975.87 = 4,247.07 : x
  2. Step 2: Convert to fraction form
    7,231.29/9,975.87 = 4,247.07/x
  3. Step 3: Cross multiply
    7,231.29x = 9,975.87 × 4,247.07
  4. Step 4: Simplify right side
    7,231.29x = 42,368,218.20
  5. Step 5: Solve for x
    x = 42,368,218.20/7,231.29
  6. Step 6: Final answer
    x = 5,859.01

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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.