Home / 3,979.71-5,492.70-2,300.85

Finding the Fourth Proportional to 3,979.71, 5,492.70 and 2,300.85

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Solution

The fourth proportional to 3,979.71, 5,492.70 and 2,300.85 is: 3,175.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.71 : 5,492.70 = 2,300.85 : x
  2. Step 2: Convert to fraction form
    3,979.71/5,492.70 = 2,300.85/x
  3. Step 3: Cross multiply
    3,979.71x = 5,492.70 × 2,300.85
  4. Step 4: Simplify right side
    3,979.71x = 12,637,878.80
  5. Step 5: Solve for x
    x = 12,637,878.80/3,979.71
  6. Step 6: Final answer
    x = 3,175.58

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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.