Home / 3,902.04-5,385.42-2,223.45

Finding the Fourth Proportional to 3,902.04, 5,385.42 and 2,223.45

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Solution

The fourth proportional to 3,902.04, 5,385.42 and 2,223.45 is: 3,068.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.04 : 5,385.42 = 2,223.45 : x
  2. Step 2: Convert to fraction form
    3,902.04/5,385.42 = 2,223.45/x
  3. Step 3: Cross multiply
    3,902.04x = 5,385.42 × 2,223.45
  4. Step 4: Simplify right side
    3,902.04x = 11,974,212.10
  5. Step 5: Solve for x
    x = 11,974,212.10/3,902.04
  6. Step 6: Final answer
    x = 3,068.71

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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.