Home / 1,721.11-2,374.99-1,012.98

Finding the Fourth Proportional to 1,721.11, 2,374.99 and 1,012.98

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Solution

The fourth proportional to 1,721.11, 2,374.99 and 1,012.98 is: 1,397.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.11 : 2,374.99 = 1,012.98 : x
  2. Step 2: Convert to fraction form
    1,721.11/2,374.99 = 1,012.98/x
  3. Step 3: Cross multiply
    1,721.11x = 2,374.99 × 1,012.98
  4. Step 4: Simplify right side
    1,721.11x = 2,405,812.31
  5. Step 5: Solve for x
    x = 2,405,812.31/1,721.11
  6. Step 6: Final answer
    x = 1,397.83

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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.