Home / 4,724.50-7,087.68-2,647.45

Finding the Fourth Proportional to 4,724.50, 7,087.68 and 2,647.45

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Solution

The fourth proportional to 4,724.50, 7,087.68 and 2,647.45 is: 3,971.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,724.50 : 7,087.68 = 2,647.45 : x
  2. Step 2: Convert to fraction form
    4,724.50/7,087.68 = 2,647.45/x
  3. Step 3: Cross multiply
    4,724.50x = 7,087.68 × 2,647.45
  4. Step 4: Simplify right side
    4,724.50x = 18,764,278.42
  5. Step 5: Solve for x
    x = 18,764,278.42/4,724.50
  6. Step 6: Final answer
    x = 3,971.70

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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.