Home / 2,021.21-3,031.45-560.48

Finding the Fourth Proportional to 2,021.21, 3,031.45 and 560.48

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Solution

The fourth proportional to 2,021.21, 3,031.45 and 560.48 is: 840.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.21 : 3,031.45 = 560.48 : x
  2. Step 2: Convert to fraction form
    2,021.21/3,031.45 = 560.48/x
  3. Step 3: Cross multiply
    2,021.21x = 3,031.45 × 560.48
  4. Step 4: Simplify right side
    2,021.21x = 1,699,050.54
  5. Step 5: Solve for x
    x = 1,699,050.54/2,021.21
  6. Step 6: Final answer
    x = 840.61

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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.