Home / 3,730.04-5,147.66-2,158.64

Finding the Fourth Proportional to 3,730.04, 5,147.66 and 2,158.64

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Solution

The fourth proportional to 3,730.04, 5,147.66 and 2,158.64 is: 2,979.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,730.04 : 5,147.66 = 2,158.64 : x
  2. Step 2: Convert to fraction form
    3,730.04/5,147.66 = 2,158.64/x
  3. Step 3: Cross multiply
    3,730.04x = 5,147.66 × 2,158.64
  4. Step 4: Simplify right side
    3,730.04x = 11,111,963.05
  5. Step 5: Solve for x
    x = 11,111,963.05/3,730.04
  6. Step 6: Final answer
    x = 2,979.04

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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.