Home / 2,649.38-3,656.49-1,810.94

Finding the Fourth Proportional to 2,649.38, 3,656.49 and 1,810.94

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Solution

The fourth proportional to 2,649.38, 3,656.49 and 1,810.94 is: 2,499.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,649.38 : 3,656.49 = 1,810.94 : x
  2. Step 2: Convert to fraction form
    2,649.38/3,656.49 = 1,810.94/x
  3. Step 3: Cross multiply
    2,649.38x = 3,656.49 × 1,810.94
  4. Step 4: Simplify right side
    2,649.38x = 6,621,684.00
  5. Step 5: Solve for x
    x = 6,621,684.00/2,649.38
  6. Step 6: Final answer
    x = 2,499.33

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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.