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Finding the Fourth Proportional to 7,210.01, 9,949.86 and 4,225.91

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Solution

The fourth proportional to 7,210.01, 9,949.86 and 4,225.91 is: 5,831.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210.01 : 9,949.86 = 4,225.91 : x
  2. Step 2: Convert to fraction form
    7,210.01/9,949.86 = 4,225.91/x
  3. Step 3: Cross multiply
    7,210.01x = 9,949.86 × 4,225.91
  4. Step 4: Simplify right side
    7,210.01x = 42,047,163.12
  5. Step 5: Solve for x
    x = 42,047,163.12/7,210.01
  6. Step 6: Final answer
    x = 5,831.77

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.