Home / 5,021.76-6,930.46-2,897.68

Finding the Fourth Proportional to 5,021.76, 6,930.46 and 2,897.68

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Solution

The fourth proportional to 5,021.76, 6,930.46 and 2,897.68 is: 3,999.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,021.76 : 6,930.46 = 2,897.68 : x
  2. Step 2: Convert to fraction form
    5,021.76/6,930.46 = 2,897.68/x
  3. Step 3: Cross multiply
    5,021.76x = 6,930.46 × 2,897.68
  4. Step 4: Simplify right side
    5,021.76x = 20,082,255.33
  5. Step 5: Solve for x
    x = 20,082,255.33/5,021.76
  6. Step 6: Final answer
    x = 3,999.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.