Home / 2,399.75-3,312.77-1,692.17

Finding the Fourth Proportional to 2,399.75, 3,312.77 and 1,692.17

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Solution

The fourth proportional to 2,399.75, 3,312.77 and 1,692.17 is: 2,335.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,399.75 : 3,312.77 = 1,692.17 : x
  2. Step 2: Convert to fraction form
    2,399.75/3,312.77 = 1,692.17/x
  3. Step 3: Cross multiply
    2,399.75x = 3,312.77 × 1,692.17
  4. Step 4: Simplify right side
    2,399.75x = 5,605,757.41
  5. Step 5: Solve for x
    x = 5,605,757.41/2,399.75
  6. Step 6: Final answer
    x = 2,335.98

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1.5x scale

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.