Home / 1,724.29-2,586.43-628.66

Finding the Fourth Proportional to 1,724.29, 2,586.43 and 628.66

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Solution

The fourth proportional to 1,724.29, 2,586.43 and 628.66 is: 942.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,724.29 : 2,586.43 = 628.66 : x
  2. Step 2: Convert to fraction form
    1,724.29/2,586.43 = 628.66/x
  3. Step 3: Cross multiply
    1,724.29x = 2,586.43 × 628.66
  4. Step 4: Simplify right side
    1,724.29x = 1,625,985.08
  5. Step 5: Solve for x
    x = 1,625,985.08/1,724.29
  6. Step 6: Final answer
    x = 942.99

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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.