Home / 4,487.80-6,728.46-1,889.32

Finding the Fourth Proportional to 4,487.80, 6,728.46 and 1,889.32

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Solution

The fourth proportional to 4,487.80, 6,728.46 and 1,889.32 is: 2,832.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,487.80 : 6,728.46 = 1,889.32 : x
  2. Step 2: Convert to fraction form
    4,487.80/6,728.46 = 1,889.32/x
  3. Step 3: Cross multiply
    4,487.80x = 6,728.46 × 1,889.32
  4. Step 4: Simplify right side
    4,487.80x = 12,712,214.05
  5. Step 5: Solve for x
    x = 12,712,214.05/4,487.80
  6. Step 6: Final answer
    x = 2,832.62

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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.