Home / 3,085.47-4,649.69-2,793.20

Finding the Fourth Proportional to 3,085.47, 4,649.69 and 2,793.20

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Solution

The fourth proportional to 3,085.47, 4,649.69 and 2,793.20 is: 4,209.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085.47 : 4,649.69 = 2,793.20 : x
  2. Step 2: Convert to fraction form
    3,085.47/4,649.69 = 2,793.20/x
  3. Step 3: Cross multiply
    3,085.47x = 4,649.69 × 2,793.20
  4. Step 4: Simplify right side
    3,085.47x = 12,987,497.84
  5. Step 5: Solve for x
    x = 12,987,497.84/3,085.47
  6. Step 6: Final answer
    x = 4,209.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.