Home / 5,022.21-6,931.40-2,897.35

Finding the Fourth Proportional to 5,022.21, 6,931.40 and 2,897.35

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Solution

The fourth proportional to 5,022.21, 6,931.40 and 2,897.35 is: 3,998.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,022.21 : 6,931.40 = 2,897.35 : x
  2. Step 2: Convert to fraction form
    5,022.21/6,931.40 = 2,897.35/x
  3. Step 3: Cross multiply
    5,022.21x = 6,931.40 × 2,897.35
  4. Step 4: Simplify right side
    5,022.21x = 20,082,691.79
  5. Step 5: Solve for x
    x = 20,082,691.79/5,022.21
  6. Step 6: Final answer
    x = 3,998.78

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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.