Home / 3,931.36-5,427.78-2,441.46

Finding the Fourth Proportional to 3,931.36, 5,427.78 and 2,441.46

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Solution

The fourth proportional to 3,931.36, 5,427.78 and 2,441.46 is: 3,370.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.36 : 5,427.78 = 2,441.46 : x
  2. Step 2: Convert to fraction form
    3,931.36/5,427.78 = 2,441.46/x
  3. Step 3: Cross multiply
    3,931.36x = 5,427.78 × 2,441.46
  4. Step 4: Simplify right side
    3,931.36x = 13,251,707.76
  5. Step 5: Solve for x
    x = 13,251,707.76/3,931.36
  6. Step 6: Final answer
    x = 3,370.77

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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.