Home / 7,831.08-11,746.62-3,938.76

Finding the Fourth Proportional to 7,831.08, 11,746.62 and 3,938.76

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Solution

The fourth proportional to 7,831.08, 11,746.62 and 3,938.76 is: 5,908.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831.08 : 11,746.62 = 3,938.76 : x
  2. Step 2: Convert to fraction form
    7,831.08/11,746.62 = 3,938.76/x
  3. Step 3: Cross multiply
    7,831.08x = 11,746.62 × 3,938.76
  4. Step 4: Simplify right side
    7,831.08x = 46,267,116.99
  5. Step 5: Solve for x
    x = 46,267,116.99/7,831.08
  6. Step 6: Final answer
    x = 5,908.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.