Home / 4,196.60-6,291.90-2,115.12

Finding the Fourth Proportional to 4,196.60, 6,291.90 and 2,115.12

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Solution

The fourth proportional to 4,196.60, 6,291.90 and 2,115.12 is: 3,171.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,196.60 : 6,291.90 = 2,115.12 : x
  2. Step 2: Convert to fraction form
    4,196.60/6,291.90 = 2,115.12/x
  3. Step 3: Cross multiply
    4,196.60x = 6,291.90 × 2,115.12
  4. Step 4: Simplify right side
    4,196.60x = 13,308,123.53
  5. Step 5: Solve for x
    x = 13,308,123.53/4,196.60
  6. Step 6: Final answer
    x = 3,171.17

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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.