Home / 4,556.57-6,290.94-3,139.80

Finding the Fourth Proportional to 4,556.57, 6,290.94 and 3,139.80

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Solution

The fourth proportional to 4,556.57, 6,290.94 and 3,139.80 is: 4,334.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,556.57 : 6,290.94 = 3,139.80 : x
  2. Step 2: Convert to fraction form
    4,556.57/6,290.94 = 3,139.80/x
  3. Step 3: Cross multiply
    4,556.57x = 6,290.94 × 3,139.80
  4. Step 4: Simplify right side
    4,556.57x = 19,752,293.41
  5. Step 5: Solve for x
    x = 19,752,293.41/4,556.57
  6. Step 6: Final answer
    x = 4,334.90

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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.