Home / 7,210.91-9,950.28-4,226.15

Finding the Fourth Proportional to 7,210.91, 9,950.28 and 4,226.15

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Solution

The fourth proportional to 7,210.91, 9,950.28 and 4,226.15 is: 5,831.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210.91 : 9,950.28 = 4,226.15 : x
  2. Step 2: Convert to fraction form
    7,210.91/9,950.28 = 4,226.15/x
  3. Step 3: Cross multiply
    7,210.91x = 9,950.28 × 4,226.15
  4. Step 4: Simplify right side
    7,210.91x = 42,051,375.82
  5. Step 5: Solve for x
    x = 42,051,375.82/7,210.91
  6. Step 6: Final answer
    x = 5,831.63

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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.