Home / 1,414.13-2,121.15-374.10

Finding the Fourth Proportional to 1,414.13, 2,121.15 and 374.10

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Solution

The fourth proportional to 1,414.13, 2,121.15 and 374.10 is: 561.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,414.13 : 2,121.15 = 374.10 : x
  2. Step 2: Convert to fraction form
    1,414.13/2,121.15 = 374.10/x
  3. Step 3: Cross multiply
    1,414.13x = 2,121.15 × 374.10
  4. Step 4: Simplify right side
    1,414.13x = 793,522.22
  5. Step 5: Solve for x
    x = 793,522.22/1,414.13
  6. Step 6: Final answer
    x = 561.14

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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.