Home / 4,299.56-6,449.28-1,221.56

Finding the Fourth Proportional to 4,299.56, 6,449.28 and 1,221.56

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Solution

The fourth proportional to 4,299.56, 6,449.28 and 1,221.56 is: 1,832.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,299.56 : 6,449.28 = 1,221.56 : x
  2. Step 2: Convert to fraction form
    4,299.56/6,449.28 = 1,221.56/x
  3. Step 3: Cross multiply
    4,299.56x = 6,449.28 × 1,221.56
  4. Step 4: Simplify right side
    4,299.56x = 7,878,182.48
  5. Step 5: Solve for x
    x = 7,878,182.48/4,299.56
  6. Step 6: Final answer
    x = 1,832.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.