Home / 1,919.03-2,649.92-1,820.61

Finding the Fourth Proportional to 1,919.03, 2,649.92 and 1,820.61

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Solution

The fourth proportional to 1,919.03, 2,649.92 and 1,820.61 is: 2,514.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919.03 : 2,649.92 = 1,820.61 : x
  2. Step 2: Convert to fraction form
    1,919.03/2,649.92 = 1,820.61/x
  3. Step 3: Cross multiply
    1,919.03x = 2,649.92 × 1,820.61
  4. Step 4: Simplify right side
    1,919.03x = 4,824,461.75
  5. Step 5: Solve for x
    x = 4,824,461.75/1,919.03
  6. Step 6: Final answer
    x = 2,514.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.