Home / 3,753.66-5,630.79-1,288.62

Finding the Fourth Proportional to 3,753.66, 5,630.79 and 1,288.62

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Solution

The fourth proportional to 3,753.66, 5,630.79 and 1,288.62 is: 1,933.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,753.66 : 5,630.79 = 1,288.62 : x
  2. Step 2: Convert to fraction form
    3,753.66/5,630.79 = 1,288.62/x
  3. Step 3: Cross multiply
    3,753.66x = 5,630.79 × 1,288.62
  4. Step 4: Simplify right side
    3,753.66x = 7,255,948.61
  5. Step 5: Solve for x
    x = 7,255,948.61/3,753.66
  6. Step 6: Final answer
    x = 1,933.03

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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.