Home / 3,145.62-4,341.12-2,098.28

Finding the Fourth Proportional to 3,145.62, 4,341.12 and 2,098.28

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Solution

The fourth proportional to 3,145.62, 4,341.12 and 2,098.28 is: 2,895.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.62 : 4,341.12 = 2,098.28 : x
  2. Step 2: Convert to fraction form
    3,145.62/4,341.12 = 2,098.28/x
  3. Step 3: Cross multiply
    3,145.62x = 4,341.12 × 2,098.28
  4. Step 4: Simplify right side
    3,145.62x = 9,108,885.27
  5. Step 5: Solve for x
    x = 9,108,885.27/3,145.62
  6. Step 6: Final answer
    x = 2,895.74

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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.