Home / 5,011.40-6,908.36-3,945.74

Finding the Fourth Proportional to 5,011.40, 6,908.36 and 3,945.74

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Solution

The fourth proportional to 5,011.40, 6,908.36 and 3,945.74 is: 5,439.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,011.40 : 6,908.36 = 3,945.74 : x
  2. Step 2: Convert to fraction form
    5,011.40/6,908.36 = 3,945.74/x
  3. Step 3: Cross multiply
    5,011.40x = 6,908.36 × 3,945.74
  4. Step 4: Simplify right side
    5,011.40x = 27,258,592.39
  5. Step 5: Solve for x
    x = 27,258,592.39/5,011.40
  6. Step 6: Final answer
    x = 5,439.32

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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.