Home / 3,754.01-5,631.77-1,121.57

Finding the Fourth Proportional to 3,754.01, 5,631.77 and 1,121.57

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Solution

The fourth proportional to 3,754.01, 5,631.77 and 1,121.57 is: 1,682.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,754.01 : 5,631.77 = 1,121.57 : x
  2. Step 2: Convert to fraction form
    3,754.01/5,631.77 = 1,121.57/x
  3. Step 3: Cross multiply
    3,754.01x = 5,631.77 × 1,121.57
  4. Step 4: Simplify right side
    3,754.01x = 6,316,398.92
  5. Step 5: Solve for x
    x = 6,316,398.92/3,754.01
  6. Step 6: Final answer
    x = 1,682.57

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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.