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Finding the Fourth Proportional to 5,643.26, 7,788.11 and 3,659.58

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Solution

The fourth proportional to 5,643.26, 7,788.11 and 3,659.58 is: 5,050.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,643.26 : 7,788.11 = 3,659.58 : x
  2. Step 2: Convert to fraction form
    5,643.26/7,788.11 = 3,659.58/x
  3. Step 3: Cross multiply
    5,643.26x = 7,788.11 × 3,659.58
  4. Step 4: Simplify right side
    5,643.26x = 28,501,219.03
  5. Step 5: Solve for x
    x = 28,501,219.03/5,643.26
  6. Step 6: Final answer
    x = 5,050.49

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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.