Home / 1,834.79-2,752.35-518.55

Finding the Fourth Proportional to 1,834.79, 2,752.35 and 518.55

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Solution

The fourth proportional to 1,834.79, 2,752.35 and 518.55 is: 777.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,834.79 : 2,752.35 = 518.55 : x
  2. Step 2: Convert to fraction form
    1,834.79/2,752.35 = 518.55/x
  3. Step 3: Cross multiply
    1,834.79x = 2,752.35 × 518.55
  4. Step 4: Simplify right side
    1,834.79x = 1,427,231.09
  5. Step 5: Solve for x
    x = 1,427,231.09/1,834.79
  6. Step 6: Final answer
    x = 777.87

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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.