Home / 2,692.18-4,037.59-1,909.90

Finding the Fourth Proportional to 2,692.18, 4,037.59 and 1,909.90

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Solution

The fourth proportional to 2,692.18, 4,037.59 and 1,909.90 is: 2,864.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,692.18 : 4,037.59 = 1,909.90 : x
  2. Step 2: Convert to fraction form
    2,692.18/4,037.59 = 1,909.90/x
  3. Step 3: Cross multiply
    2,692.18x = 4,037.59 × 1,909.90
  4. Step 4: Simplify right side
    2,692.18x = 7,711,393.14
  5. Step 5: Solve for x
    x = 7,711,393.14/2,692.18
  6. Step 6: Final answer
    x = 2,864.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.