Home / 1,724.70-2,586.90-554.66

Finding the Fourth Proportional to 1,724.70, 2,586.90 and 554.66

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Solution

The fourth proportional to 1,724.70, 2,586.90 and 554.66 is: 831.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,724.70 : 2,586.90 = 554.66 : x
  2. Step 2: Convert to fraction form
    1,724.70/2,586.90 = 554.66/x
  3. Step 3: Cross multiply
    1,724.70x = 2,586.90 × 554.66
  4. Step 4: Simplify right side
    1,724.70x = 1,434,849.95
  5. Step 5: Solve for x
    x = 1,434,849.95/1,724.70
  6. Step 6: Final answer
    x = 831.94

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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.