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Finding the Fourth Proportional to 5,656.83, 7,811.09 and 3,670.80

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Solution

The fourth proportional to 5,656.83, 7,811.09 and 3,670.80 is: 5,068.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,656.83 : 7,811.09 = 3,670.80 : x
  2. Step 2: Convert to fraction form
    5,656.83/7,811.09 = 3,670.80/x
  3. Step 3: Cross multiply
    5,656.83x = 7,811.09 × 3,670.80
  4. Step 4: Simplify right side
    5,656.83x = 28,672,949.17
  5. Step 5: Solve for x
    x = 28,672,949.17/5,656.83
  6. Step 6: Final answer
    x = 5,068.73

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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.