Home / 5,141.28-7,705.44-2,830.08

Finding the Fourth Proportional to 5,141.28, 7,705.44 and 2,830.08

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Solution

The fourth proportional to 5,141.28, 7,705.44 and 2,830.08 is: 4,241.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,141.28 : 7,705.44 = 2,830.08 : x
  2. Step 2: Convert to fraction form
    5,141.28/7,705.44 = 2,830.08/x
  3. Step 3: Cross multiply
    5,141.28x = 7,705.44 × 2,830.08
  4. Step 4: Simplify right side
    5,141.28x = 21,807,011.64
  5. Step 5: Solve for x
    x = 21,807,011.64/5,141.28
  6. Step 6: Final answer
    x = 4,241.55

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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.