Home / 3,592.60-5,381.54-2,128.18

Finding the Fourth Proportional to 3,592.60, 5,381.54 and 2,128.18

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Solution

The fourth proportional to 3,592.60, 5,381.54 and 2,128.18 is: 3,187.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,592.60 : 5,381.54 = 2,128.18 : x
  2. Step 2: Convert to fraction form
    3,592.60/5,381.54 = 2,128.18/x
  3. Step 3: Cross multiply
    3,592.60x = 5,381.54 × 2,128.18
  4. Step 4: Simplify right side
    3,592.60x = 11,452,885.80
  5. Step 5: Solve for x
    x = 11,452,885.80/3,592.60
  6. Step 6: Final answer
    x = 3,187.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.