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Finding the Fourth Proportional to 5,005.50, 6,907.59 and 2,797.50

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Solution

The fourth proportional to 5,005.50, 6,907.59 and 2,797.50 is: 3,860.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,005.50 : 6,907.59 = 2,797.50 : x
  2. Step 2: Convert to fraction form
    5,005.50/6,907.59 = 2,797.50/x
  3. Step 3: Cross multiply
    5,005.50x = 6,907.59 × 2,797.50
  4. Step 4: Simplify right side
    5,005.50x = 19,323,983.03
  5. Step 5: Solve for x
    x = 19,323,983.03/5,005.50
  6. Step 6: Final answer
    x = 3,860.55

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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.