Home / 2,580.30-3,561.66-1,919.34

Finding the Fourth Proportional to 2,580.30, 3,561.66 and 1,919.34

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Solution

The fourth proportional to 2,580.30, 3,561.66 and 1,919.34 is: 2,649.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,580.30 : 3,561.66 = 1,919.34 : x
  2. Step 2: Convert to fraction form
    2,580.30/3,561.66 = 1,919.34/x
  3. Step 3: Cross multiply
    2,580.30x = 3,561.66 × 1,919.34
  4. Step 4: Simplify right side
    2,580.30x = 6,836,036.50
  5. Step 5: Solve for x
    x = 6,836,036.50/2,580.30
  6. Step 6: Final answer
    x = 2,649.32

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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.