Home / 3,156.68-4,725.30-1,692.20

Finding the Fourth Proportional to 3,156.68, 4,725.30 and 1,692.20

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Solution

The fourth proportional to 3,156.68, 4,725.30 and 1,692.20 is: 2,533.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.68 : 4,725.30 = 1,692.20 : x
  2. Step 2: Convert to fraction form
    3,156.68/4,725.30 = 1,692.20/x
  3. Step 3: Cross multiply
    3,156.68x = 4,725.30 × 1,692.20
  4. Step 4: Simplify right side
    3,156.68x = 7,996,152.66
  5. Step 5: Solve for x
    x = 7,996,152.66/3,156.68
  6. Step 6: Final answer
    x = 2,533.09

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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.