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Finding the Fourth Proportional to 4,559.72, 6,288.21 and 2,878.22

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Solution

The fourth proportional to 4,559.72, 6,288.21 and 2,878.22 is: 3,969.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,559.72 : 6,288.21 = 2,878.22 : x
  2. Step 2: Convert to fraction form
    4,559.72/6,288.21 = 2,878.22/x
  3. Step 3: Cross multiply
    4,559.72x = 6,288.21 × 2,878.22
  4. Step 4: Simplify right side
    4,559.72x = 18,098,820.35
  5. Step 5: Solve for x
    x = 18,098,820.35/4,559.72
  6. Step 6: Final answer
    x = 3,969.29

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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.