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Finding the Fourth Proportional to 2,776.96, 3,831.84 and 1,534.96

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Solution

The fourth proportional to 2,776.96, 3,831.84 and 1,534.96 is: 2,118.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.96 : 3,831.84 = 1,534.96 : x
  2. Step 2: Convert to fraction form
    2,776.96/3,831.84 = 1,534.96/x
  3. Step 3: Cross multiply
    2,776.96x = 3,831.84 × 1,534.96
  4. Step 4: Simplify right side
    2,776.96x = 5,881,721.13
  5. Step 5: Solve for x
    x = 5,881,721.13/2,776.96
  6. Step 6: Final answer
    x = 2,118.04

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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.