Home / 1,474.13-2,211.27-378.50

Finding the Fourth Proportional to 1,474.13, 2,211.27 and 378.50

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Solution

The fourth proportional to 1,474.13, 2,211.27 and 378.50 is: 567.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.13 : 2,211.27 = 378.50 : x
  2. Step 2: Convert to fraction form
    1,474.13/2,211.27 = 378.50/x
  3. Step 3: Cross multiply
    1,474.13x = 2,211.27 × 378.50
  4. Step 4: Simplify right side
    1,474.13x = 836,971.93
  5. Step 5: Solve for x
    x = 836,971.93/1,474.13
  6. Step 6: Final answer
    x = 567.77

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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.