Home / 1,721.23-2,376.87-1,251.83

Finding the Fourth Proportional to 1,721.23, 2,376.87 and 1,251.83

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Solution

The fourth proportional to 1,721.23, 2,376.87 and 1,251.83 is: 1,728.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.23 : 2,376.87 = 1,251.83 : x
  2. Step 2: Convert to fraction form
    1,721.23/2,376.87 = 1,251.83/x
  3. Step 3: Cross multiply
    1,721.23x = 2,376.87 × 1,251.83
  4. Step 4: Simplify right side
    1,721.23x = 2,975,437.17
  5. Step 5: Solve for x
    x = 2,975,437.17/1,721.23
  6. Step 6: Final answer
    x = 1,728.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.