Home / 1,474.13-2,211.10-434.09

Finding the Fourth Proportional to 1,474.13, 2,211.10 and 434.09

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Solution

The fourth proportional to 1,474.13, 2,211.10 and 434.09 is: 651.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.13 : 2,211.10 = 434.09 : x
  2. Step 2: Convert to fraction form
    1,474.13/2,211.10 = 434.09/x
  3. Step 3: Cross multiply
    1,474.13x = 2,211.10 × 434.09
  4. Step 4: Simplify right side
    1,474.13x = 959,816.40
  5. Step 5: Solve for x
    x = 959,816.40/1,474.13
  6. Step 6: Final answer
    x = 651.11

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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.