Home / 5,122.28-7,068.67-2,884.16

Finding the Fourth Proportional to 5,122.28, 7,068.67 and 2,884.16

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Solution

The fourth proportional to 5,122.28, 7,068.67 and 2,884.16 is: 3,980.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.28 : 7,068.67 = 2,884.16 : x
  2. Step 2: Convert to fraction form
    5,122.28/7,068.67 = 2,884.16/x
  3. Step 3: Cross multiply
    5,122.28x = 7,068.67 × 2,884.16
  4. Step 4: Simplify right side
    5,122.28x = 20,387,175.27
  5. Step 5: Solve for x
    x = 20,387,175.27/5,122.28
  6. Step 6: Final answer
    x = 3,980.10

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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.