Home / 2,909.11-4,342.56-2,692.28

Finding the Fourth Proportional to 2,909.11, 4,342.56 and 2,692.28

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Solution

The fourth proportional to 2,909.11, 4,342.56 and 2,692.28 is: 4,018.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.11 : 4,342.56 = 2,692.28 : x
  2. Step 2: Convert to fraction form
    2,909.11/4,342.56 = 2,692.28/x
  3. Step 3: Cross multiply
    2,909.11x = 4,342.56 × 2,692.28
  4. Step 4: Simplify right side
    2,909.11x = 11,691,373.98
  5. Step 5: Solve for x
    x = 11,691,373.98/2,909.11
  6. Step 6: Final answer
    x = 4,018.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.