Home / 8,140.40-12,212.89-2,297.06

Finding the Fourth Proportional to 8,140.40, 12,212.89 and 2,297.06

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Solution

The fourth proportional to 8,140.40, 12,212.89 and 2,297.06 is: 3,446.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.40 : 12,212.89 = 2,297.06 : x
  2. Step 2: Convert to fraction form
    8,140.40/12,212.89 = 2,297.06/x
  3. Step 3: Cross multiply
    8,140.40x = 12,212.89 × 2,297.06
  4. Step 4: Simplify right side
    8,140.40x = 28,053,741.10
  5. Step 5: Solve for x
    x = 28,053,741.10/8,140.40
  6. Step 6: Final answer
    x = 3,446.24

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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.