Home / 1,813.63-2,502.15-1,105.19

Finding the Fourth Proportional to 1,813.63, 2,502.15 and 1,105.19

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Solution

The fourth proportional to 1,813.63, 2,502.15 and 1,105.19 is: 1,524.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,813.63 : 2,502.15 = 1,105.19 : x
  2. Step 2: Convert to fraction form
    1,813.63/2,502.15 = 1,105.19/x
  3. Step 3: Cross multiply
    1,813.63x = 2,502.15 × 1,105.19
  4. Step 4: Simplify right side
    1,813.63x = 2,765,351.16
  5. Step 5: Solve for x
    x = 2,765,351.16/1,813.63
  6. Step 6: Final answer
    x = 1,524.76

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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.