Home / 1,474.23-2,211.45-434.22

Finding the Fourth Proportional to 1,474.23, 2,211.45 and 434.22

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Solution

The fourth proportional to 1,474.23, 2,211.45 and 434.22 is: 651.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.23 : 2,211.45 = 434.22 : x
  2. Step 2: Convert to fraction form
    1,474.23/2,211.45 = 434.22/x
  3. Step 3: Cross multiply
    1,474.23x = 2,211.45 × 434.22
  4. Step 4: Simplify right side
    1,474.23x = 960,255.82
  5. Step 5: Solve for x
    x = 960,255.82/1,474.23
  6. Step 6: Final answer
    x = 651.36

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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.