Home / 3,090.18-4,264.29-1,692.66

Finding the Fourth Proportional to 3,090.18, 4,264.29 and 1,692.66

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Solution

The fourth proportional to 3,090.18, 4,264.29 and 1,692.66 is: 2,335.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.18 : 4,264.29 = 1,692.66 : x
  2. Step 2: Convert to fraction form
    3,090.18/4,264.29 = 1,692.66/x
  3. Step 3: Cross multiply
    3,090.18x = 4,264.29 × 1,692.66
  4. Step 4: Simplify right side
    3,090.18x = 7,217,993.11
  5. Step 5: Solve for x
    x = 7,217,993.11/3,090.18
  6. Step 6: Final answer
    x = 2,335.78

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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.