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Finding the Fourth Proportional to 5,144.30, 7,100.30 and 2,907.47

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Solution

The fourth proportional to 5,144.30, 7,100.30 and 2,907.47 is: 4,012.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,144.30 : 7,100.30 = 2,907.47 : x
  2. Step 2: Convert to fraction form
    5,144.30/7,100.30 = 2,907.47/x
  3. Step 3: Cross multiply
    5,144.30x = 7,100.30 × 2,907.47
  4. Step 4: Simplify right side
    5,144.30x = 20,643,907.38
  5. Step 5: Solve for x
    x = 20,643,907.38/5,144.30
  6. Step 6: Final answer
    x = 4,012.97

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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.