Home / 1,474.16-2,211.21-378.51

Finding the Fourth Proportional to 1,474.16, 2,211.21 and 378.51

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Solution

The fourth proportional to 1,474.16, 2,211.21 and 378.51 is: 567.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.16 : 2,211.21 = 378.51 : x
  2. Step 2: Convert to fraction form
    1,474.16/2,211.21 = 378.51/x
  3. Step 3: Cross multiply
    1,474.16x = 2,211.21 × 378.51
  4. Step 4: Simplify right side
    1,474.16x = 836,965.10
  5. Step 5: Solve for x
    x = 836,965.10/1,474.16
  6. Step 6: Final answer
    x = 567.76

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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.