Home / 3,108.64-4,291.99-2,399.23

Finding the Fourth Proportional to 3,108.64, 4,291.99 and 2,399.23

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Solution

The fourth proportional to 3,108.64, 4,291.99 and 2,399.23 is: 3,312.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.64 : 4,291.99 = 2,399.23 : x
  2. Step 2: Convert to fraction form
    3,108.64/4,291.99 = 2,399.23/x
  3. Step 3: Cross multiply
    3,108.64x = 4,291.99 × 2,399.23
  4. Step 4: Simplify right side
    3,108.64x = 10,297,437.71
  5. Step 5: Solve for x
    x = 10,297,437.71/3,108.64
  6. Step 6: Final answer
    x = 3,312.53

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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.