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Finding the Fourth Proportional to 5,063.70, 6,987.70 and 2,939.26

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Solution

The fourth proportional to 5,063.70, 6,987.70 and 2,939.26 is: 4,056.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,063.70 : 6,987.70 = 2,939.26 : x
  2. Step 2: Convert to fraction form
    5,063.70/6,987.70 = 2,939.26/x
  3. Step 3: Cross multiply
    5,063.70x = 6,987.70 × 2,939.26
  4. Step 4: Simplify right side
    5,063.70x = 20,538,667.10
  5. Step 5: Solve for x
    x = 20,538,667.10/5,063.70
  6. Step 6: Final answer
    x = 4,056.06

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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.