Home / 4,375.64-6,561.05-2,990.54

Finding the Fourth Proportional to 4,375.64, 6,561.05 and 2,990.54

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Solution

The fourth proportional to 4,375.64, 6,561.05 and 2,990.54 is: 4,484.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,375.64 : 6,561.05 = 2,990.54 : x
  2. Step 2: Convert to fraction form
    4,375.64/6,561.05 = 2,990.54/x
  3. Step 3: Cross multiply
    4,375.64x = 6,561.05 × 2,990.54
  4. Step 4: Simplify right side
    4,375.64x = 19,621,083.92
  5. Step 5: Solve for x
    x = 19,621,083.92/4,375.64
  6. Step 6: Final answer
    x = 4,484.16

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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.