Home / 1,817.10-2,724.98-518.13

Finding the Fourth Proportional to 1,817.10, 2,724.98 and 518.13

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Solution

The fourth proportional to 1,817.10, 2,724.98 and 518.13 is: 777.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817.10 : 2,724.98 = 518.13 : x
  2. Step 2: Convert to fraction form
    1,817.10/2,724.98 = 518.13/x
  3. Step 3: Cross multiply
    1,817.10x = 2,724.98 × 518.13
  4. Step 4: Simplify right side
    1,817.10x = 1,411,891.30
  5. Step 5: Solve for x
    x = 1,411,891.30/1,817.10
  6. Step 6: Final answer
    x = 777.00

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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.