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Finding the Fourth Proportional to 5,656.26, 7,805.51 and 3,138.34

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Solution

The fourth proportional to 5,656.26, 7,805.51 and 3,138.34 is: 4,330.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,656.26 : 7,805.51 = 3,138.34 : x
  2. Step 2: Convert to fraction form
    5,656.26/7,805.51 = 3,138.34/x
  3. Step 3: Cross multiply
    5,656.26x = 7,805.51 × 3,138.34
  4. Step 4: Simplify right side
    5,656.26x = 24,496,312.99
  5. Step 5: Solve for x
    x = 24,496,312.99/5,656.26
  6. Step 6: Final answer
    x = 4,330.83

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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.