Home / 2,649.36-3,656.70-1,601.76

Finding the Fourth Proportional to 2,649.36, 3,656.70 and 1,601.76

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Solution

The fourth proportional to 2,649.36, 3,656.70 and 1,601.76 is: 2,210.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,649.36 : 3,656.70 = 1,601.76 : x
  2. Step 2: Convert to fraction form
    2,649.36/3,656.70 = 1,601.76/x
  3. Step 3: Cross multiply
    2,649.36x = 3,656.70 × 1,601.76
  4. Step 4: Simplify right side
    2,649.36x = 5,857,155.79
  5. Step 5: Solve for x
    x = 5,857,155.79/2,649.36
  6. Step 6: Final answer
    x = 2,210.78

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1.5x scale

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.