Home / 3,429.90-4,730.97-2,085.12

Finding the Fourth Proportional to 3,429.90, 4,730.97 and 2,085.12

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Solution

The fourth proportional to 3,429.90, 4,730.97 and 2,085.12 is: 2,876.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.90 : 4,730.97 = 2,085.12 : x
  2. Step 2: Convert to fraction form
    3,429.90/4,730.97 = 2,085.12/x
  3. Step 3: Cross multiply
    3,429.90x = 4,730.97 × 2,085.12
  4. Step 4: Simplify right side
    3,429.90x = 9,864,640.17
  5. Step 5: Solve for x
    x = 9,864,640.17/3,429.90
  6. Step 6: Final answer
    x = 2,876.07

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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.