Home / 5,222.56-7,828.80-2,617.60

Finding the Fourth Proportional to 5,222.56, 7,828.80 and 2,617.60

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Solution

The fourth proportional to 5,222.56, 7,828.80 and 2,617.60 is: 3,923.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,222.56 : 7,828.80 = 2,617.60 : x
  2. Step 2: Convert to fraction form
    5,222.56/7,828.80 = 2,617.60/x
  3. Step 3: Cross multiply
    5,222.56x = 7,828.80 × 2,617.60
  4. Step 4: Simplify right side
    5,222.56x = 20,492,666.88
  5. Step 5: Solve for x
    x = 20,492,666.88/5,222.56
  6. Step 6: Final answer
    x = 3,923.87

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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.