Home / 2,021.20-3,031.96-560.24

Finding the Fourth Proportional to 2,021.20, 3,031.96 and 560.24

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Solution

The fourth proportional to 2,021.20, 3,031.96 and 560.24 is: 840.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.20 : 3,031.96 = 560.24 : x
  2. Step 2: Convert to fraction form
    2,021.20/3,031.96 = 560.24/x
  3. Step 3: Cross multiply
    2,021.20x = 3,031.96 × 560.24
  4. Step 4: Simplify right side
    2,021.20x = 1,698,625.27
  5. Step 5: Solve for x
    x = 1,698,625.27/2,021.20
  6. Step 6: Final answer
    x = 840.40

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1.5x scale

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.