Home / 3,312.45-4,568.53-2,179.28

Finding the Fourth Proportional to 3,312.45, 4,568.53 and 2,179.28

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Solution

The fourth proportional to 3,312.45, 4,568.53 and 2,179.28 is: 3,005.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.45 : 4,568.53 = 2,179.28 : x
  2. Step 2: Convert to fraction form
    3,312.45/4,568.53 = 2,179.28/x
  3. Step 3: Cross multiply
    3,312.45x = 4,568.53 × 2,179.28
  4. Step 4: Simplify right side
    3,312.45x = 9,956,112.03
  5. Step 5: Solve for x
    x = 9,956,112.03/3,312.45
  6. Step 6: Final answer
    x = 3,005.66

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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.