Home / 3,244.64-4,872.47-2,120.76

Finding the Fourth Proportional to 3,244.64, 4,872.47 and 2,120.76

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Solution

The fourth proportional to 3,244.64, 4,872.47 and 2,120.76 is: 3,184.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,244.64 : 4,872.47 = 2,120.76 : x
  2. Step 2: Convert to fraction form
    3,244.64/4,872.47 = 2,120.76/x
  3. Step 3: Cross multiply
    3,244.64x = 4,872.47 × 2,120.76
  4. Step 4: Simplify right side
    3,244.64x = 10,333,328.87
  5. Step 5: Solve for x
    x = 10,333,328.87/3,244.64
  6. Step 6: Final answer
    x = 3,184.74

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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.