Home / 5,191.05-7,156.23-3,200.28

Finding the Fourth Proportional to 5,191.05, 7,156.23 and 3,200.28

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Solution

The fourth proportional to 5,191.05, 7,156.23 and 3,200.28 is: 4,411.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.05 : 7,156.23 = 3,200.28 : x
  2. Step 2: Convert to fraction form
    5,191.05/7,156.23 = 3,200.28/x
  3. Step 3: Cross multiply
    5,191.05x = 7,156.23 × 3,200.28
  4. Step 4: Simplify right side
    5,191.05x = 22,901,939.74
  5. Step 5: Solve for x
    x = 22,901,939.74/5,191.05
  6. Step 6: Final answer
    x = 4,411.81

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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.