Home / 7,421.44-11,128.89-2,226.10

Finding the Fourth Proportional to 7,421.44, 11,128.89 and 2,226.10

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Solution

The fourth proportional to 7,421.44, 11,128.89 and 2,226.10 is: 3,338.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.44 : 11,128.89 = 2,226.10 : x
  2. Step 2: Convert to fraction form
    7,421.44/11,128.89 = 2,226.10/x
  3. Step 3: Cross multiply
    7,421.44x = 11,128.89 × 2,226.10
  4. Step 4: Simplify right side
    7,421.44x = 24,773,966.38
  5. Step 5: Solve for x
    x = 24,773,966.38/7,421.44
  6. Step 6: Final answer
    x = 3,338.16

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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.