Home / 1,355.34-2,022.63-1,209.54

Finding the Fourth Proportional to 1,355.34, 2,022.63 and 1,209.54

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Solution

The fourth proportional to 1,355.34, 2,022.63 and 1,209.54 is: 1,805.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355.34 : 2,022.63 = 1,209.54 : x
  2. Step 2: Convert to fraction form
    1,355.34/2,022.63 = 1,209.54/x
  3. Step 3: Cross multiply
    1,355.34x = 2,022.63 × 1,209.54
  4. Step 4: Simplify right side
    1,355.34x = 2,446,445.84
  5. Step 5: Solve for x
    x = 2,446,445.84/1,355.34
  6. Step 6: Final answer
    x = 1,805.04

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.