Home / 3,077.36-4,638.26-2,649.68

Finding the Fourth Proportional to 3,077.36, 4,638.26 and 2,649.68

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Solution

The fourth proportional to 3,077.36, 4,638.26 and 2,649.68 is: 3,993.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077.36 : 4,638.26 = 2,649.68 : x
  2. Step 2: Convert to fraction form
    3,077.36/4,638.26 = 2,649.68/x
  3. Step 3: Cross multiply
    3,077.36x = 4,638.26 × 2,649.68
  4. Step 4: Simplify right side
    3,077.36x = 12,289,904.76
  5. Step 5: Solve for x
    x = 12,289,904.76/3,077.36
  6. Step 6: Final answer
    x = 3,993.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.