Home / 2,421.70-3,632.98-1,251.38

Finding the Fourth Proportional to 2,421.70, 3,632.98 and 1,251.38

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Solution

The fourth proportional to 2,421.70, 3,632.98 and 1,251.38 is: 1,877.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.70 : 3,632.98 = 1,251.38 : x
  2. Step 2: Convert to fraction form
    2,421.70/3,632.98 = 1,251.38/x
  3. Step 3: Cross multiply
    2,421.70x = 3,632.98 × 1,251.38
  4. Step 4: Simplify right side
    2,421.70x = 4,546,214.09
  5. Step 5: Solve for x
    x = 4,546,214.09/2,421.70
  6. Step 6: Final answer
    x = 1,877.28

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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.