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Finding the Fourth Proportional to 1,808.95, 2,713.44 and 576.35

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Solution

The fourth proportional to 1,808.95, 2,713.44 and 576.35 is: 864.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,808.95 : 2,713.44 = 576.35 : x
  2. Step 2: Convert to fraction form
    1,808.95/2,713.44 = 576.35/x
  3. Step 3: Cross multiply
    1,808.95x = 2,713.44 × 576.35
  4. Step 4: Simplify right side
    1,808.95x = 1,563,891.14
  5. Step 5: Solve for x
    x = 1,563,891.14/1,808.95
  6. Step 6: Final answer
    x = 864.53

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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.