Home / 3,145.15-4,332.81-2,199.17

Finding the Fourth Proportional to 3,145.15, 4,332.81 and 2,199.17

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Solution

The fourth proportional to 3,145.15, 4,332.81 and 2,199.17 is: 3,029.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.15 : 4,332.81 = 2,199.17 : x
  2. Step 2: Convert to fraction form
    3,145.15/4,332.81 = 2,199.17/x
  3. Step 3: Cross multiply
    3,145.15x = 4,332.81 × 2,199.17
  4. Step 4: Simplify right side
    3,145.15x = 9,528,591.10
  5. Step 5: Solve for x
    x = 9,528,591.10/3,145.15
  6. Step 6: Final answer
    x = 3,029.61

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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.