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Finding the Fourth Proportional to 5,063.91, 6,987.07 and 2,938.21

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Solution

The fourth proportional to 5,063.91, 6,987.07 and 2,938.21 is: 4,054.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,063.91 : 6,987.07 = 2,938.21 : x
  2. Step 2: Convert to fraction form
    5,063.91/6,987.07 = 2,938.21/x
  3. Step 3: Cross multiply
    5,063.91x = 6,987.07 × 2,938.21
  4. Step 4: Simplify right side
    5,063.91x = 20,529,478.94
  5. Step 5: Solve for x
    x = 20,529,478.94/5,063.91
  6. Step 6: Final answer
    x = 4,054.08

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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.