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Finding the Fourth Proportional to 2,811.48, 4,211.49 and 1,700.22

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Solution

The fourth proportional to 2,811.48, 4,211.49 and 1,700.22 is: 2,546.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.48 : 4,211.49 = 1,700.22 : x
  2. Step 2: Convert to fraction form
    2,811.48/4,211.49 = 1,700.22/x
  3. Step 3: Cross multiply
    2,811.48x = 4,211.49 × 1,700.22
  4. Step 4: Simplify right side
    2,811.48x = 7,160,459.53
  5. Step 5: Solve for x
    x = 7,160,459.53/2,811.48
  6. Step 6: Final answer
    x = 2,546.86

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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.