Home / 2,624.72-3,938.62-2,421.74

Finding the Fourth Proportional to 2,624.72, 3,938.62 and 2,421.74

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Solution

The fourth proportional to 2,624.72, 3,938.62 and 2,421.74 is: 3,634.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,624.72 : 3,938.62 = 2,421.74 : x
  2. Step 2: Convert to fraction form
    2,624.72/3,938.62 = 2,421.74/x
  3. Step 3: Cross multiply
    2,624.72x = 3,938.62 × 2,421.74
  4. Step 4: Simplify right side
    2,624.72x = 9,538,313.60
  5. Step 5: Solve for x
    x = 9,538,313.60/2,624.72
  6. Step 6: Final answer
    x = 3,634.03

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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.