Home / 3,730.84-5,148.46-2,158.96

Finding the Fourth Proportional to 3,730.84, 5,148.46 and 2,158.96

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Solution

The fourth proportional to 3,730.84, 5,148.46 and 2,158.96 is: 2,979.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,730.84 : 5,148.46 = 2,158.96 : x
  2. Step 2: Convert to fraction form
    3,730.84/5,148.46 = 2,158.96/x
  3. Step 3: Cross multiply
    3,730.84x = 5,148.46 × 2,158.96
  4. Step 4: Simplify right side
    3,730.84x = 11,115,319.20
  5. Step 5: Solve for x
    x = 11,115,319.20/3,730.84
  6. Step 6: Final answer
    x = 2,979.31

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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.