Home / 1,354.84-2,021.88-1,209.04

Finding the Fourth Proportional to 1,354.84, 2,021.88 and 1,209.04

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Solution

The fourth proportional to 1,354.84, 2,021.88 and 1,209.04 is: 1,804.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354.84 : 2,021.88 = 1,209.04 : x
  2. Step 2: Convert to fraction form
    1,354.84/2,021.88 = 1,209.04/x
  3. Step 3: Cross multiply
    1,354.84x = 2,021.88 × 1,209.04
  4. Step 4: Simplify right side
    1,354.84x = 2,444,533.80
  5. Step 5: Solve for x
    x = 2,444,533.80/1,354.84
  6. Step 6: Final answer
    x = 1,804.30

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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.