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Finding the Fourth Proportional to 5,165.76, 7,746.70 and 1,878.04

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Solution

The fourth proportional to 5,165.76, 7,746.70 and 1,878.04 is: 2,816.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,165.76 : 7,746.70 = 1,878.04 : x
  2. Step 2: Convert to fraction form
    5,165.76/7,746.70 = 1,878.04/x
  3. Step 3: Cross multiply
    5,165.76x = 7,746.70 × 1,878.04
  4. Step 4: Simplify right side
    5,165.76x = 14,548,612.47
  5. Step 5: Solve for x
    x = 14,548,612.47/5,165.76
  6. Step 6: Final answer
    x = 2,816.35

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