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Finding the Fourth Proportional to 5,086.88, 7,020.11 and 2,848.70

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Solution

The fourth proportional to 5,086.88, 7,020.11 and 2,848.70 is: 3,931.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,086.88 : 7,020.11 = 2,848.70 : x
  2. Step 2: Convert to fraction form
    5,086.88/7,020.11 = 2,848.70/x
  3. Step 3: Cross multiply
    5,086.88x = 7,020.11 × 2,848.70
  4. Step 4: Simplify right side
    5,086.88x = 19,998,216.38
  5. Step 5: Solve for x
    x = 19,998,216.38/5,086.88
  6. Step 6: Final answer
    x = 3,931.34

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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.