Home / 4,480.31-6,714.09-2,138.40

Finding the Fourth Proportional to 4,480.31, 6,714.09 and 2,138.40

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Solution

The fourth proportional to 4,480.31, 6,714.09 and 2,138.40 is: 3,204.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,480.31 : 6,714.09 = 2,138.40 : x
  2. Step 2: Convert to fraction form
    4,480.31/6,714.09 = 2,138.40/x
  3. Step 3: Cross multiply
    4,480.31x = 6,714.09 × 2,138.40
  4. Step 4: Simplify right side
    4,480.31x = 14,357,410.06
  5. Step 5: Solve for x
    x = 14,357,410.06/4,480.31
  6. Step 6: Final answer
    x = 3,204.56

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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.