Home / 4,331.34-5,978.81-2,839.59

Finding the Fourth Proportional to 4,331.34, 5,978.81 and 2,839.59

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Solution

The fourth proportional to 4,331.34, 5,978.81 and 2,839.59 is: 3,919.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,331.34 : 5,978.81 = 2,839.59 : x
  2. Step 2: Convert to fraction form
    4,331.34/5,978.81 = 2,839.59/x
  3. Step 3: Cross multiply
    4,331.34x = 5,978.81 × 2,839.59
  4. Step 4: Simplify right side
    4,331.34x = 16,977,376.19
  5. Step 5: Solve for x
    x = 16,977,376.19/4,331.34
  6. Step 6: Final answer
    x = 3,919.66

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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.