Home / 3,642.09-5,026.92-2,578.75

Finding the Fourth Proportional to 3,642.09, 5,026.92 and 2,578.75

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Solution

The fourth proportional to 3,642.09, 5,026.92 and 2,578.75 is: 3,559.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,642.09 : 5,026.92 = 2,578.75 : x
  2. Step 2: Convert to fraction form
    3,642.09/5,026.92 = 2,578.75/x
  3. Step 3: Cross multiply
    3,642.09x = 5,026.92 × 2,578.75
  4. Step 4: Simplify right side
    3,642.09x = 12,963,166.56
  5. Step 5: Solve for x
    x = 12,963,166.56/3,642.09
  6. Step 6: Final answer
    x = 3,559.26

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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.