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Finding the Fourth Proportional to 2,314.55, 3,472.18 and 775.19

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Solution

The fourth proportional to 2,314.55, 3,472.18 and 775.19 is: 1,162.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,314.55 : 3,472.18 = 775.19 : x
  2. Step 2: Convert to fraction form
    2,314.55/3,472.18 = 775.19/x
  3. Step 3: Cross multiply
    2,314.55x = 3,472.18 × 775.19
  4. Step 4: Simplify right side
    2,314.55x = 2,691,599.21
  5. Step 5: Solve for x
    x = 2,691,599.21/2,314.55
  6. Step 6: Final answer
    x = 1,162.90

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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.