Home / 4,939.57-7,411.36-2,164.78

Finding the Fourth Proportional to 4,939.57, 7,411.36 and 2,164.78

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Solution

The fourth proportional to 4,939.57, 7,411.36 and 2,164.78 is: 3,248.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,939.57 : 7,411.36 = 2,164.78 : x
  2. Step 2: Convert to fraction form
    4,939.57/7,411.36 = 2,164.78/x
  3. Step 3: Cross multiply
    4,939.57x = 7,411.36 × 2,164.78
  4. Step 4: Simplify right side
    4,939.57x = 16,043,999.81
  5. Step 5: Solve for x
    x = 16,043,999.81/4,939.57
  6. Step 6: Final answer
    x = 3,248.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.