Home / 1,692.84-2,534.40-1,251.12

Finding the Fourth Proportional to 1,692.84, 2,534.40 and 1,251.12

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Solution

The fourth proportional to 1,692.84, 2,534.40 and 1,251.12 is: 1,873.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692.84 : 2,534.40 = 1,251.12 : x
  2. Step 2: Convert to fraction form
    1,692.84/2,534.40 = 1,251.12/x
  3. Step 3: Cross multiply
    1,692.84x = 2,534.40 × 1,251.12
  4. Step 4: Simplify right side
    1,692.84x = 3,170,838.53
  5. Step 5: Solve for x
    x = 3,170,838.53/1,692.84
  6. Step 6: Final answer
    x = 1,873.09

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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.