Home / 3,216.96-4,430.40-2,774.64

Finding the Fourth Proportional to 3,216.96, 4,430.40 and 2,774.64

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Solution

The fourth proportional to 3,216.96, 4,430.40 and 2,774.64 is: 3,821.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216.96 : 4,430.40 = 2,774.64 : x
  2. Step 2: Convert to fraction form
    3,216.96/4,430.40 = 2,774.64/x
  3. Step 3: Cross multiply
    3,216.96x = 4,430.40 × 2,774.64
  4. Step 4: Simplify right side
    3,216.96x = 12,292,765.06
  5. Step 5: Solve for x
    x = 12,292,765.06/3,216.96
  6. Step 6: Final answer
    x = 3,821.24

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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.