Home / 3,945.32-5,444.51-2,152.79

Finding the Fourth Proportional to 3,945.32, 5,444.51 and 2,152.79

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Solution

The fourth proportional to 3,945.32, 5,444.51 and 2,152.79 is: 2,970.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.32 : 5,444.51 = 2,152.79 : x
  2. Step 2: Convert to fraction form
    3,945.32/5,444.51 = 2,152.79/x
  3. Step 3: Cross multiply
    3,945.32x = 5,444.51 × 2,152.79
  4. Step 4: Simplify right side
    3,945.32x = 11,720,848.70
  5. Step 5: Solve for x
    x = 11,720,848.70/3,945.32
  6. Step 6: Final answer
    x = 2,970.83

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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.