Home / 3,436.90-4,743.02-2,109.85

Finding the Fourth Proportional to 3,436.90, 4,743.02 and 2,109.85

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Solution

The fourth proportional to 3,436.90, 4,743.02 and 2,109.85 is: 2,911.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,436.90 : 4,743.02 = 2,109.85 : x
  2. Step 2: Convert to fraction form
    3,436.90/4,743.02 = 2,109.85/x
  3. Step 3: Cross multiply
    3,436.90x = 4,743.02 × 2,109.85
  4. Step 4: Simplify right side
    3,436.90x = 10,007,054.16
  5. Step 5: Solve for x
    x = 10,007,054.16/3,436.90
  6. Step 6: Final answer
    x = 2,911.65

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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.