Home / 5,191.40-7,785.24-2,592.56

Finding the Fourth Proportional to 5,191.40, 7,785.24 and 2,592.56

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Solution

The fourth proportional to 5,191.40, 7,785.24 and 2,592.56 is: 3,887.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.40 : 7,785.24 = 2,592.56 : x
  2. Step 2: Convert to fraction form
    5,191.40/7,785.24 = 2,592.56/x
  3. Step 3: Cross multiply
    5,191.40x = 7,785.24 × 2,592.56
  4. Step 4: Simplify right side
    5,191.40x = 20,183,701.81
  5. Step 5: Solve for x
    x = 20,183,701.81/5,191.40
  6. Step 6: Final answer
    x = 3,887.91

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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.