Home / 2,578.08-3,556.94-1,515.51

Finding the Fourth Proportional to 2,578.08, 3,556.94 and 1,515.51

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Solution

The fourth proportional to 2,578.08, 3,556.94 and 1,515.51 is: 2,090.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.08 : 3,556.94 = 1,515.51 : x
  2. Step 2: Convert to fraction form
    2,578.08/3,556.94 = 1,515.51/x
  3. Step 3: Cross multiply
    2,578.08x = 3,556.94 × 1,515.51
  4. Step 4: Simplify right side
    2,578.08x = 5,390,579.09
  5. Step 5: Solve for x
    x = 5,390,579.09/2,578.08
  6. Step 6: Final answer
    x = 2,090.92

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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.