Home / 1,362.80-2,028.78-1,354.70

Finding the Fourth Proportional to 1,362.80, 2,028.78 and 1,354.70

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Solution

The fourth proportional to 1,362.80, 2,028.78 and 1,354.70 is: 2,016.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362.80 : 2,028.78 = 1,354.70 : x
  2. Step 2: Convert to fraction form
    1,362.80/2,028.78 = 1,354.70/x
  3. Step 3: Cross multiply
    1,362.80x = 2,028.78 × 1,354.70
  4. Step 4: Simplify right side
    1,362.80x = 2,748,388.27
  5. Step 5: Solve for x
    x = 2,748,388.27/1,362.80
  6. Step 6: Final answer
    x = 2,016.72

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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.