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Finding the Fourth Proportional to 7,028.79, 9,695.03 and 5,111.39

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Solution

The fourth proportional to 7,028.79, 9,695.03 and 5,111.39 is: 7,050.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,028.79 : 9,695.03 = 5,111.39 : x
  2. Step 2: Convert to fraction form
    7,028.79/9,695.03 = 5,111.39/x
  3. Step 3: Cross multiply
    7,028.79x = 9,695.03 × 5,111.39
  4. Step 4: Simplify right side
    7,028.79x = 49,555,043.70
  5. Step 5: Solve for x
    x = 49,555,043.70/7,028.79
  6. Step 6: Final answer
    x = 7,050.30

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Half scale
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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.