Home / 4,724.60-7,086.90-2,124.50

Finding the Fourth Proportional to 4,724.60, 7,086.90 and 2,124.50

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Solution

The fourth proportional to 4,724.60, 7,086.90 and 2,124.50 is: 3,186.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,724.60 : 7,086.90 = 2,124.50 : x
  2. Step 2: Convert to fraction form
    4,724.60/7,086.90 = 2,124.50/x
  3. Step 3: Cross multiply
    4,724.60x = 7,086.90 × 2,124.50
  4. Step 4: Simplify right side
    4,724.60x = 15,056,119.05
  5. Step 5: Solve for x
    x = 15,056,119.05/4,724.60
  6. Step 6: Final answer
    x = 3,186.75

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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.