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Finding the Fourth Proportional to 7,753.02, 11,629.52 and 1,909.63

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Solution

The fourth proportional to 7,753.02, 11,629.52 and 1,909.63 is: 2,864.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,753.02 : 11,629.52 = 1,909.63 : x
  2. Step 2: Convert to fraction form
    7,753.02/11,629.52 = 1,909.63/x
  3. Step 3: Cross multiply
    7,753.02x = 11,629.52 × 1,909.63
  4. Step 4: Simplify right side
    7,753.02x = 22,208,080.28
  5. Step 5: Solve for x
    x = 22,208,080.28/7,753.02
  6. Step 6: Final answer
    x = 2,864.44

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Double scale
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Similar ratio
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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.