Home / 3,291.20-4,552.48-2,684.48

Finding the Fourth Proportional to 3,291.20, 4,552.48 and 2,684.48

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Solution

The fourth proportional to 3,291.20, 4,552.48 and 2,684.48 is: 3,713.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.20 : 4,552.48 = 2,684.48 : x
  2. Step 2: Convert to fraction form
    3,291.20/4,552.48 = 2,684.48/x
  3. Step 3: Cross multiply
    3,291.20x = 4,552.48 × 2,684.48
  4. Step 4: Simplify right side
    3,291.20x = 12,221,041.51
  5. Step 5: Solve for x
    x = 12,221,041.51/3,291.20
  6. Step 6: Final answer
    x = 3,713.25

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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.