Home / 2,110.38-3,165.59-812.76

Finding the Fourth Proportional to 2,110.38, 3,165.59 and 812.76

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Solution

The fourth proportional to 2,110.38, 3,165.59 and 812.76 is: 1,219.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.38 : 3,165.59 = 812.76 : x
  2. Step 2: Convert to fraction form
    2,110.38/3,165.59 = 812.76/x
  3. Step 3: Cross multiply
    2,110.38x = 3,165.59 × 812.76
  4. Step 4: Simplify right side
    2,110.38x = 2,572,845.04
  5. Step 5: Solve for x
    x = 2,572,845.04/2,110.38
  6. Step 6: Final answer
    x = 1,219.14

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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.