Home / 2,021.30-3,031.43-560.12

Finding the Fourth Proportional to 2,021.30, 3,031.43 and 560.12

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Solution

The fourth proportional to 2,021.30, 3,031.43 and 560.12 is: 840.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.30 : 3,031.43 = 560.12 : x
  2. Step 2: Convert to fraction form
    2,021.30/3,031.43 = 560.12/x
  3. Step 3: Cross multiply
    2,021.30x = 3,031.43 × 560.12
  4. Step 4: Simplify right side
    2,021.30x = 1,697,946.61
  5. Step 5: Solve for x
    x = 1,697,946.61/2,021.30
  6. Step 6: Final answer
    x = 840.03

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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.