Home / 3,490.34-4,817.51-1,999.13

Finding the Fourth Proportional to 3,490.34, 4,817.51 and 1,999.13

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Solution

The fourth proportional to 3,490.34, 4,817.51 and 1,999.13 is: 2,759.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,490.34 : 4,817.51 = 1,999.13 : x
  2. Step 2: Convert to fraction form
    3,490.34/4,817.51 = 1,999.13/x
  3. Step 3: Cross multiply
    3,490.34x = 4,817.51 × 1,999.13
  4. Step 4: Simplify right side
    3,490.34x = 9,630,794.68
  5. Step 5: Solve for x
    x = 9,630,794.68/3,490.34
  6. Step 6: Final answer
    x = 2,759.28

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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.