Home / 3,100.08-4,649.19-1,638.44

Finding the Fourth Proportional to 3,100.08, 4,649.19 and 1,638.44

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Solution

The fourth proportional to 3,100.08, 4,649.19 and 1,638.44 is: 2,457.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.08 : 4,649.19 = 1,638.44 : x
  2. Step 2: Convert to fraction form
    3,100.08/4,649.19 = 1,638.44/x
  3. Step 3: Cross multiply
    3,100.08x = 4,649.19 × 1,638.44
  4. Step 4: Simplify right side
    3,100.08x = 7,617,418.86
  5. Step 5: Solve for x
    x = 7,617,418.86/3,100.08
  6. Step 6: Final answer
    x = 2,457.17

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1.5x scale

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.