Home / 2,421.83-3,632.51-666.97

Finding the Fourth Proportional to 2,421.83, 3,632.51 and 666.97

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Solution

The fourth proportional to 2,421.83, 3,632.51 and 666.97 is: 1,000.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.83 : 3,632.51 = 666.97 : x
  2. Step 2: Convert to fraction form
    2,421.83/3,632.51 = 666.97/x
  3. Step 3: Cross multiply
    2,421.83x = 3,632.51 × 666.97
  4. Step 4: Simplify right side
    2,421.83x = 2,422,767.78
  5. Step 5: Solve for x
    x = 2,422,767.78/2,421.83
  6. Step 6: Final answer
    x = 1,000.39

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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.