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Finding the Fourth Proportional to 2,643.56, 3,967.77 and 2,484.80

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Solution

The fourth proportional to 2,643.56, 3,967.77 and 2,484.80 is: 3,729.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643.56 : 3,967.77 = 2,484.80 : x
  2. Step 2: Convert to fraction form
    2,643.56/3,967.77 = 2,484.80/x
  3. Step 3: Cross multiply
    2,643.56x = 3,967.77 × 2,484.80
  4. Step 4: Simplify right side
    2,643.56x = 9,859,114.90
  5. Step 5: Solve for x
    x = 9,859,114.90/2,643.56
  6. Step 6: Final answer
    x = 3,729.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.