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Finding the Fourth Proportional to 2,723.04, 4,084.70 and 775.40

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Solution

The fourth proportional to 2,723.04, 4,084.70 and 775.40 is: 1,163.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,723.04 : 4,084.70 = 775.40 : x
  2. Step 2: Convert to fraction form
    2,723.04/4,084.70 = 775.40/x
  3. Step 3: Cross multiply
    2,723.04x = 4,084.70 × 775.40
  4. Step 4: Simplify right side
    2,723.04x = 3,167,276.38
  5. Step 5: Solve for x
    x = 3,167,276.38/2,723.04
  6. Step 6: Final answer
    x = 1,163.14

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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.