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Finding the Fourth Proportional to 5,439.47, 7,507.09 and 3,050.09

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Solution

The fourth proportional to 5,439.47, 7,507.09 and 3,050.09 is: 4,209.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.47 : 7,507.09 = 3,050.09 : x
  2. Step 2: Convert to fraction form
    5,439.47/7,507.09 = 3,050.09/x
  3. Step 3: Cross multiply
    5,439.47x = 7,507.09 × 3,050.09
  4. Step 4: Simplify right side
    5,439.47x = 22,897,300.14
  5. Step 5: Solve for x
    x = 22,897,300.14/5,439.47
  6. Step 6: Final answer
    x = 4,209.47

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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.