Home / 1,724.58-2,586.40-491.96

Finding the Fourth Proportional to 1,724.58, 2,586.40 and 491.96

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Solution

The fourth proportional to 1,724.58, 2,586.40 and 491.96 is: 737.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,724.58 : 2,586.40 = 491.96 : x
  2. Step 2: Convert to fraction form
    1,724.58/2,586.40 = 491.96/x
  3. Step 3: Cross multiply
    1,724.58x = 2,586.40 × 491.96
  4. Step 4: Simplify right side
    1,724.58x = 1,272,410.58
  5. Step 5: Solve for x
    x = 1,272,410.58/1,724.58
  6. Step 6: Final answer
    x = 737.81

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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.