Home / 3,939.08-5,909.50-1,718.28

Finding the Fourth Proportional to 3,939.08, 5,909.50 and 1,718.28

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Solution

The fourth proportional to 3,939.08, 5,909.50 and 1,718.28 is: 2,577.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.08 : 5,909.50 = 1,718.28 : x
  2. Step 2: Convert to fraction form
    3,939.08/5,909.50 = 1,718.28/x
  3. Step 3: Cross multiply
    3,939.08x = 5,909.50 × 1,718.28
  4. Step 4: Simplify right side
    3,939.08x = 10,154,164.41
  5. Step 5: Solve for x
    x = 10,154,164.41/3,939.08
  6. Step 6: Final answer
    x = 2,577.80

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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.