Home / 3,753.39-5,630.36-1,120.68

Finding the Fourth Proportional to 3,753.39, 5,630.36 and 1,120.68

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Solution

The fourth proportional to 3,753.39, 5,630.36 and 1,120.68 is: 1,681.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,753.39 : 5,630.36 = 1,120.68 : x
  2. Step 2: Convert to fraction form
    3,753.39/5,630.36 = 1,120.68/x
  3. Step 3: Cross multiply
    3,753.39x = 5,630.36 × 1,120.68
  4. Step 4: Simplify right side
    3,753.39x = 6,309,826.24
  5. Step 5: Solve for x
    x = 6,309,826.24/3,753.39
  6. Step 6: Final answer
    x = 1,681.10

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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.