Home / 5,121.53-7,068.38-2,883.84

Finding the Fourth Proportional to 5,121.53, 7,068.38 and 2,883.84

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Solution

The fourth proportional to 5,121.53, 7,068.38 and 2,883.84 is: 3,980.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.53 : 7,068.38 = 2,883.84 : x
  2. Step 2: Convert to fraction form
    5,121.53/7,068.38 = 2,883.84/x
  3. Step 3: Cross multiply
    5,121.53x = 7,068.38 × 2,883.84
  4. Step 4: Simplify right side
    5,121.53x = 20,384,082.39
  5. Step 5: Solve for x
    x = 20,384,082.39/5,121.53
  6. Step 6: Final answer
    x = 3,980.08

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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.