Home / 3,631.17-5,013.84-2,790.55

Finding the Fourth Proportional to 3,631.17, 5,013.84 and 2,790.55

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Solution

The fourth proportional to 3,631.17, 5,013.84 and 2,790.55 is: 3,853.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631.17 : 5,013.84 = 2,790.55 : x
  2. Step 2: Convert to fraction form
    3,631.17/5,013.84 = 2,790.55/x
  3. Step 3: Cross multiply
    3,631.17x = 5,013.84 × 2,790.55
  4. Step 4: Simplify right side
    3,631.17x = 13,991,371.21
  5. Step 5: Solve for x
    x = 13,991,371.21/3,631.17
  6. Step 6: Final answer
    x = 3,853.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.