Home / 1,724.38-2,586.56-1,205.39

Finding the Fourth Proportional to 1,724.38, 2,586.56 and 1,205.39

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Solution

The fourth proportional to 1,724.38, 2,586.56 and 1,205.39 is: 1,808.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,724.38 : 2,586.56 = 1,205.39 : x
  2. Step 2: Convert to fraction form
    1,724.38/2,586.56 = 1,205.39/x
  3. Step 3: Cross multiply
    1,724.38x = 2,586.56 × 1,205.39
  4. Step 4: Simplify right side
    1,724.38x = 3,117,814.00
  5. Step 5: Solve for x
    x = 3,117,814.00/1,724.38
  6. Step 6: Final answer
    x = 1,808.08

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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.