Home / 3,427.08-5,136.72-2,129.44

Finding the Fourth Proportional to 3,427.08, 5,136.72 and 2,129.44

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Solution

The fourth proportional to 3,427.08, 5,136.72 and 2,129.44 is: 3,191.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.08 : 5,136.72 = 2,129.44 : x
  2. Step 2: Convert to fraction form
    3,427.08/5,136.72 = 2,129.44/x
  3. Step 3: Cross multiply
    3,427.08x = 5,136.72 × 2,129.44
  4. Step 4: Simplify right side
    3,427.08x = 10,938,337.04
  5. Step 5: Solve for x
    x = 10,938,337.04/3,427.08
  6. Step 6: Final answer
    x = 3,191.74

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1.5x scale

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.