Home / 2,580.80-3,561.66-1,461.78

Finding the Fourth Proportional to 2,580.80, 3,561.66 and 1,461.78

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Solution

The fourth proportional to 2,580.80, 3,561.66 and 1,461.78 is: 2,017.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,580.80 : 3,561.66 = 1,461.78 : x
  2. Step 2: Convert to fraction form
    2,580.80/3,561.66 = 1,461.78/x
  3. Step 3: Cross multiply
    2,580.80x = 3,561.66 × 1,461.78
  4. Step 4: Simplify right side
    2,580.80x = 5,206,356.05
  5. Step 5: Solve for x
    x = 5,206,356.05/2,580.80
  6. Step 6: Final answer
    x = 2,017.35

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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.