Home / 3,631.23-5,011.81-2,139.08

Finding the Fourth Proportional to 3,631.23, 5,011.81 and 2,139.08

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Solution

The fourth proportional to 3,631.23, 5,011.81 and 2,139.08 is: 2,952.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631.23 : 5,011.81 = 2,139.08 : x
  2. Step 2: Convert to fraction form
    3,631.23/5,011.81 = 2,139.08/x
  3. Step 3: Cross multiply
    3,631.23x = 5,011.81 × 2,139.08
  4. Step 4: Simplify right side
    3,631.23x = 10,720,632.13
  5. Step 5: Solve for x
    x = 10,720,632.13/3,631.23
  6. Step 6: Final answer
    x = 2,952.34

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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.