Home / 2,021.13-3,031.69-560.28

Finding the Fourth Proportional to 2,021.13, 3,031.69 and 560.28

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Solution

The fourth proportional to 2,021.13, 3,031.69 and 560.28 is: 840.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.13 : 3,031.69 = 560.28 : x
  2. Step 2: Convert to fraction form
    2,021.13/3,031.69 = 560.28/x
  3. Step 3: Cross multiply
    2,021.13x = 3,031.69 × 560.28
  4. Step 4: Simplify right side
    2,021.13x = 1,698,577.31
  5. Step 5: Solve for x
    x = 1,698,577.31/2,021.13
  6. Step 6: Final answer
    x = 840.41

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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.