Home / 3,120.03-4,299.57-2,818.02

Finding the Fourth Proportional to 3,120.03, 4,299.57 and 2,818.02

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Solution

The fourth proportional to 3,120.03, 4,299.57 and 2,818.02 is: 3,883.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.03 : 4,299.57 = 2,818.02 : x
  2. Step 2: Convert to fraction form
    3,120.03/4,299.57 = 2,818.02/x
  3. Step 3: Cross multiply
    3,120.03x = 4,299.57 × 2,818.02
  4. Step 4: Simplify right side
    3,120.03x = 12,116,274.25
  5. Step 5: Solve for x
    x = 12,116,274.25/3,120.03
  6. Step 6: Final answer
    x = 3,883.38

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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.