Home / 7,720.21-11,578.55-4,601.10

Finding the Fourth Proportional to 7,720.21, 11,578.55 and 4,601.10

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Solution

The fourth proportional to 7,720.21, 11,578.55 and 4,601.10 is: 6,900.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720.21 : 11,578.55 = 4,601.10 : x
  2. Step 2: Convert to fraction form
    7,720.21/11,578.55 = 4,601.10/x
  3. Step 3: Cross multiply
    7,720.21x = 11,578.55 × 4,601.10
  4. Step 4: Simplify right side
    7,720.21x = 53,274,086.82
  5. Step 5: Solve for x
    x = 53,274,086.82/7,720.21
  6. Step 6: Final answer
    x = 6,900.60

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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.