Home / 4,589.72-6,331.78-2,820.28

Finding the Fourth Proportional to 4,589.72, 6,331.78 and 2,820.28

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Solution

The fourth proportional to 4,589.72, 6,331.78 and 2,820.28 is: 3,890.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,589.72 : 6,331.78 = 2,820.28 : x
  2. Step 2: Convert to fraction form
    4,589.72/6,331.78 = 2,820.28/x
  3. Step 3: Cross multiply
    4,589.72x = 6,331.78 × 2,820.28
  4. Step 4: Simplify right side
    4,589.72x = 17,857,392.50
  5. Step 5: Solve for x
    x = 17,857,392.50/4,589.72
  6. Step 6: Final answer
    x = 3,890.74

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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.