Home / 7,212.08-9,950.79-4,226.31

Finding the Fourth Proportional to 7,212.08, 9,950.79 and 4,226.31

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Solution

The fourth proportional to 7,212.08, 9,950.79 and 4,226.31 is: 5,831.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.08 : 9,950.79 = 4,226.31 : x
  2. Step 2: Convert to fraction form
    7,212.08/9,950.79 = 4,226.31/x
  3. Step 3: Cross multiply
    7,212.08x = 9,950.79 × 4,226.31
  4. Step 4: Simplify right side
    7,212.08x = 42,055,123.28
  5. Step 5: Solve for x
    x = 42,055,123.28/7,212.08
  6. Step 6: Final answer
    x = 5,831.21

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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.