Home / 1,354.38-2,020.49-1,292.46

Finding the Fourth Proportional to 1,354.38, 2,020.49 and 1,292.46

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Solution

The fourth proportional to 1,354.38, 2,020.49 and 1,292.46 is: 1,928.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354.38 : 2,020.49 = 1,292.46 : x
  2. Step 2: Convert to fraction form
    1,354.38/2,020.49 = 1,292.46/x
  3. Step 3: Cross multiply
    1,354.38x = 2,020.49 × 1,292.46
  4. Step 4: Simplify right side
    1,354.38x = 2,611,396.04
  5. Step 5: Solve for x
    x = 2,611,396.04/1,354.38
  6. Step 6: Final answer
    x = 1,928.11

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1.5x scale

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.