Home / 3,709.32-5,118.18-2,136.84

Finding the Fourth Proportional to 3,709.32, 5,118.18 and 2,136.84

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Solution

The fourth proportional to 3,709.32, 5,118.18 and 2,136.84 is: 2,948.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.32 : 5,118.18 = 2,136.84 : x
  2. Step 2: Convert to fraction form
    3,709.32/5,118.18 = 2,136.84/x
  3. Step 3: Cross multiply
    3,709.32x = 5,118.18 × 2,136.84
  4. Step 4: Simplify right side
    3,709.32x = 10,936,731.75
  5. Step 5: Solve for x
    x = 10,936,731.75/3,709.32
  6. Step 6: Final answer
    x = 2,948.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.