Home / 3,159.08-4,358.18-2,318.32

Finding the Fourth Proportional to 3,159.08, 4,358.18 and 2,318.32

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Solution

The fourth proportional to 3,159.08, 4,358.18 and 2,318.32 is: 3,198.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.08 : 4,358.18 = 2,318.32 : x
  2. Step 2: Convert to fraction form
    3,159.08/4,358.18 = 2,318.32/x
  3. Step 3: Cross multiply
    3,159.08x = 4,358.18 × 2,318.32
  4. Step 4: Simplify right side
    3,159.08x = 10,103,655.86
  5. Step 5: Solve for x
    x = 10,103,655.86/3,159.08
  6. Step 6: Final answer
    x = 3,198.30

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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.