Home / 2,110.60-3,164.28-813.16

Finding the Fourth Proportional to 2,110.60, 3,164.28 and 813.16

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Solution

The fourth proportional to 2,110.60, 3,164.28 and 813.16 is: 1,219.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.60 : 3,164.28 = 813.16 : x
  2. Step 2: Convert to fraction form
    2,110.60/3,164.28 = 813.16/x
  3. Step 3: Cross multiply
    2,110.60x = 3,164.28 × 813.16
  4. Step 4: Simplify right side
    2,110.60x = 2,573,065.92
  5. Step 5: Solve for x
    x = 2,573,065.92/2,110.60
  6. Step 6: Final answer
    x = 1,219.12

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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.