Home / 5,021.97-6,931.20-2,897.13

Finding the Fourth Proportional to 5,021.97, 6,931.20 and 2,897.13

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Solution

The fourth proportional to 5,021.97, 6,931.20 and 2,897.13 is: 3,998.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,021.97 : 6,931.20 = 2,897.13 : x
  2. Step 2: Convert to fraction form
    5,021.97/6,931.20 = 2,897.13/x
  3. Step 3: Cross multiply
    5,021.97x = 6,931.20 × 2,897.13
  4. Step 4: Simplify right side
    5,021.97x = 20,080,587.46
  5. Step 5: Solve for x
    x = 20,080,587.46/5,021.97
  6. Step 6: Final answer
    x = 3,998.55

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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.