Home / 7,718.20-10,651.12-4,181.42

Finding the Fourth Proportional to 7,718.20, 10,651.12 and 4,181.42

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Solution

The fourth proportional to 7,718.20, 10,651.12 and 4,181.42 is: 5,770.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.20 : 10,651.12 = 4,181.42 : x
  2. Step 2: Convert to fraction form
    7,718.20/10,651.12 = 4,181.42/x
  3. Step 3: Cross multiply
    7,718.20x = 10,651.12 × 4,181.42
  4. Step 4: Simplify right side
    7,718.20x = 44,536,822.36
  5. Step 5: Solve for x
    x = 44,536,822.36/7,718.20
  6. Step 6: Final answer
    x = 5,770.37

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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.