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Finding the Fourth Proportional to 4,599.71, 6,899.53 and 1,312.80

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Solution

The fourth proportional to 4,599.71, 6,899.53 and 1,312.80 is: 1,969.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,599.71 : 6,899.53 = 1,312.80 : x
  2. Step 2: Convert to fraction form
    4,599.71/6,899.53 = 1,312.80/x
  3. Step 3: Cross multiply
    4,599.71x = 6,899.53 × 1,312.80
  4. Step 4: Simplify right side
    4,599.71x = 9,057,702.98
  5. Step 5: Solve for x
    x = 9,057,702.98/4,599.71
  6. Step 6: Final answer
    x = 1,969.19

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