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Finding the Fourth Proportional to 4,751.82, 7,125.93 and 2,778.17

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Solution

The fourth proportional to 4,751.82, 7,125.93 and 2,778.17 is: 4,166.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,751.82 : 7,125.93 = 2,778.17 : x
  2. Step 2: Convert to fraction form
    4,751.82/7,125.93 = 2,778.17/x
  3. Step 3: Cross multiply
    4,751.82x = 7,125.93 × 2,778.17
  4. Step 4: Simplify right side
    4,751.82x = 19,797,009.32
  5. Step 5: Solve for x
    x = 19,797,009.32/4,751.82
  6. Step 6: Final answer
    x = 4,166.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.