Home / 1,813.55-2,502.93-1,105.62

Finding the Fourth Proportional to 1,813.55, 2,502.93 and 1,105.62

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Solution

The fourth proportional to 1,813.55, 2,502.93 and 1,105.62 is: 1,525.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,813.55 : 2,502.93 = 1,105.62 : x
  2. Step 2: Convert to fraction form
    1,813.55/2,502.93 = 1,105.62/x
  3. Step 3: Cross multiply
    1,813.55x = 2,502.93 × 1,105.62
  4. Step 4: Simplify right side
    1,813.55x = 2,767,278.01
  5. Step 5: Solve for x
    x = 2,767,278.01/1,813.55
  6. Step 6: Final answer
    x = 1,525.89

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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.