Home / 2,021.17-3,031.76-560.40

Finding the Fourth Proportional to 2,021.17, 3,031.76 and 560.40

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Solution

The fourth proportional to 2,021.17, 3,031.76 and 560.40 is: 840.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.17 : 3,031.76 = 560.40 : x
  2. Step 2: Convert to fraction form
    2,021.17/3,031.76 = 560.40/x
  3. Step 3: Cross multiply
    2,021.17x = 3,031.76 × 560.40
  4. Step 4: Simplify right side
    2,021.17x = 1,698,998.30
  5. Step 5: Solve for x
    x = 1,698,998.30/2,021.17
  6. Step 6: Final answer
    x = 840.60

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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.