Home / 3,934.10-5,428.28-2,256.04

Finding the Fourth Proportional to 3,934.10, 5,428.28 and 2,256.04

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Solution

The fourth proportional to 3,934.10, 5,428.28 and 2,256.04 is: 3,112.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934.10 : 5,428.28 = 2,256.04 : x
  2. Step 2: Convert to fraction form
    3,934.10/5,428.28 = 2,256.04/x
  3. Step 3: Cross multiply
    3,934.10x = 5,428.28 × 2,256.04
  4. Step 4: Simplify right side
    3,934.10x = 12,246,416.81
  5. Step 5: Solve for x
    x = 12,246,416.81/3,934.10
  6. Step 6: Final answer
    x = 3,112.89

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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.