Home / 5,141.30-7,708.60-2,021.61

Finding the Fourth Proportional to 5,141.30, 7,708.60 and 2,021.61

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Solution

The fourth proportional to 5,141.30, 7,708.60 and 2,021.61 is: 3,031.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,141.30 : 7,708.60 = 2,021.61 : x
  2. Step 2: Convert to fraction form
    5,141.30/7,708.60 = 2,021.61/x
  3. Step 3: Cross multiply
    5,141.30x = 7,708.60 × 2,021.61
  4. Step 4: Simplify right side
    5,141.30x = 15,583,756.47
  5. Step 5: Solve for x
    x = 15,583,756.47/5,141.30
  6. Step 6: Final answer
    x = 3,031.10

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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.