Home / 2,578.18-3,556.29-2,263.20

Finding the Fourth Proportional to 2,578.18, 3,556.29 and 2,263.20

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Solution

The fourth proportional to 2,578.18, 3,556.29 and 2,263.20 is: 3,121.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.18 : 3,556.29 = 2,263.20 : x
  2. Step 2: Convert to fraction form
    2,578.18/3,556.29 = 2,263.20/x
  3. Step 3: Cross multiply
    2,578.18x = 3,556.29 × 2,263.20
  4. Step 4: Simplify right side
    2,578.18x = 8,048,595.53
  5. Step 5: Solve for x
    x = 8,048,595.53/2,578.18
  6. Step 6: Final answer
    x = 3,121.81

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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.