Home / 2,090.62-3,135.12-1,116.19

Finding the Fourth Proportional to 2,090.62, 3,135.12 and 1,116.19

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Solution

The fourth proportional to 2,090.62, 3,135.12 and 1,116.19 is: 1,673.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,090.62 : 3,135.12 = 1,116.19 : x
  2. Step 2: Convert to fraction form
    2,090.62/3,135.12 = 1,116.19/x
  3. Step 3: Cross multiply
    2,090.62x = 3,135.12 × 1,116.19
  4. Step 4: Simplify right side
    2,090.62x = 3,499,389.59
  5. Step 5: Solve for x
    x = 3,499,389.59/2,090.62
  6. Step 6: Final answer
    x = 1,673.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.