Home / 2,771.24-4,157.60-823.46

Finding the Fourth Proportional to 2,771.24, 4,157.60 and 823.46

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Solution

The fourth proportional to 2,771.24, 4,157.60 and 823.46 is: 1,235.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.24 : 4,157.60 = 823.46 : x
  2. Step 2: Convert to fraction form
    2,771.24/4,157.60 = 823.46/x
  3. Step 3: Cross multiply
    2,771.24x = 4,157.60 × 823.46
  4. Step 4: Simplify right side
    2,771.24x = 3,423,592.39
  5. Step 5: Solve for x
    x = 3,423,592.39/2,771.24
  6. Step 6: Final answer
    x = 1,235.40

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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.