Home / 2,112.48-3,170.09-943.19

Finding the Fourth Proportional to 2,112.48, 3,170.09 and 943.19

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Solution

The fourth proportional to 2,112.48, 3,170.09 and 943.19 is: 1,415.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,112.48 : 3,170.09 = 943.19 : x
  2. Step 2: Convert to fraction form
    2,112.48/3,170.09 = 943.19/x
  3. Step 3: Cross multiply
    2,112.48x = 3,170.09 × 943.19
  4. Step 4: Simplify right side
    2,112.48x = 2,990,008.11
  5. Step 5: Solve for x
    x = 2,990,008.11/2,112.48
  6. Step 6: Final answer
    x = 1,415.40

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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.