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Finding the Fourth Proportional to 5,076, 7,007.76 and 3,831.84

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Solution

The fourth proportional to 5,076, 7,007.76 and 3,831.84 is: 5,290.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,076 : 7,007.76 = 3,831.84 : x
  2. Step 2: Convert to fraction form
    5,076/7,007.76 = 3,831.84/x
  3. Step 3: Cross multiply
    5,076x = 7,007.76 × 3,831.84
  4. Step 4: Simplify right side
    5,076x = 26,852,615.08
  5. Step 5: Solve for x
    x = 26,852,615.08/5,076
  6. Step 6: Final answer
    x = 5,290.11

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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.