Home / 5,643.30-7,788.24-3,285.66

Finding the Fourth Proportional to 5,643.30, 7,788.24 and 3,285.66

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Solution

The fourth proportional to 5,643.30, 7,788.24 and 3,285.66 is: 4,534.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,643.30 : 7,788.24 = 3,285.66 : x
  2. Step 2: Convert to fraction form
    5,643.30/7,788.24 = 3,285.66/x
  3. Step 3: Cross multiply
    5,643.30x = 7,788.24 × 3,285.66
  4. Step 4: Simplify right side
    5,643.30x = 25,589,508.64
  5. Step 5: Solve for x
    x = 25,589,508.64/5,643.30
  6. Step 6: Final answer
    x = 4,534.49

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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.