Home / 3,977.62-5,489.93-2,299.10

Finding the Fourth Proportional to 3,977.62, 5,489.93 and 2,299.10

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Solution

The fourth proportional to 3,977.62, 5,489.93 and 2,299.10 is: 3,173.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.62 : 5,489.93 = 2,299.10 : x
  2. Step 2: Convert to fraction form
    3,977.62/5,489.93 = 2,299.10/x
  3. Step 3: Cross multiply
    3,977.62x = 5,489.93 × 2,299.10
  4. Step 4: Simplify right side
    3,977.62x = 12,621,886.57
  5. Step 5: Solve for x
    x = 12,621,886.57/3,977.62
  6. Step 6: Final answer
    x = 3,173.22

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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.