Home / 1,697.80-2,342.61-1,226.41

Finding the Fourth Proportional to 1,697.80, 2,342.61 and 1,226.41

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Solution

The fourth proportional to 1,697.80, 2,342.61 and 1,226.41 is: 1,692.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,697.80 : 2,342.61 = 1,226.41 : x
  2. Step 2: Convert to fraction form
    1,697.80/2,342.61 = 1,226.41/x
  3. Step 3: Cross multiply
    1,697.80x = 2,342.61 × 1,226.41
  4. Step 4: Simplify right side
    1,697.80x = 2,872,988.62
  5. Step 5: Solve for x
    x = 2,872,988.62/1,697.80
  6. Step 6: Final answer
    x = 1,692.19

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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.