Home / 3,215.24-4,824.78-2,239.40

Finding the Fourth Proportional to 3,215.24, 4,824.78 and 2,239.40

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Solution

The fourth proportional to 3,215.24, 4,824.78 and 2,239.40 is: 3,360.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.24 : 4,824.78 = 2,239.40 : x
  2. Step 2: Convert to fraction form
    3,215.24/4,824.78 = 2,239.40/x
  3. Step 3: Cross multiply
    3,215.24x = 4,824.78 × 2,239.40
  4. Step 4: Simplify right side
    3,215.24x = 10,804,612.33
  5. Step 5: Solve for x
    x = 10,804,612.33/3,215.24
  6. Step 6: Final answer
    x = 3,360.44

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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.