Home / 1,490.22-2,236.14-1,336.86

Finding the Fourth Proportional to 1,490.22, 2,236.14 and 1,336.86

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Solution

The fourth proportional to 1,490.22, 2,236.14 and 1,336.86 is: 2,006.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490.22 : 2,236.14 = 1,336.86 : x
  2. Step 2: Convert to fraction form
    1,490.22/2,236.14 = 1,336.86/x
  3. Step 3: Cross multiply
    1,490.22x = 2,236.14 × 1,336.86
  4. Step 4: Simplify right side
    1,490.22x = 2,989,406.12
  5. Step 5: Solve for x
    x = 2,989,406.12/1,490.22
  6. Step 6: Final answer
    x = 2,006.02

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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.