Home / 3,678.11-5,073.74-2,331.28

Finding the Fourth Proportional to 3,678.11, 5,073.74 and 2,331.28

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Solution

The fourth proportional to 3,678.11, 5,073.74 and 2,331.28 is: 3,215.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.11 : 5,073.74 = 2,331.28 : x
  2. Step 2: Convert to fraction form
    3,678.11/5,073.74 = 2,331.28/x
  3. Step 3: Cross multiply
    3,678.11x = 5,073.74 × 2,331.28
  4. Step 4: Simplify right side
    3,678.11x = 11,828,312.02
  5. Step 5: Solve for x
    x = 11,828,312.02/3,678.11
  6. Step 6: Final answer
    x = 3,215.87

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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.