Home / 5,188.20-7,159.64-2,830.29

Finding the Fourth Proportional to 5,188.20, 7,159.64 and 2,830.29

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Solution

The fourth proportional to 5,188.20, 7,159.64 and 2,830.29 is: 3,905.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188.20 : 7,159.64 = 2,830.29 : x
  2. Step 2: Convert to fraction form
    5,188.20/7,159.64 = 2,830.29/x
  3. Step 3: Cross multiply
    5,188.20x = 7,159.64 × 2,830.29
  4. Step 4: Simplify right side
    5,188.20x = 20,263,843.34
  5. Step 5: Solve for x
    x = 20,263,843.34/5,188.20
  6. Step 6: Final answer
    x = 3,905.76

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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.