Home / 3,069.70-4,605.46-1,428.23

Finding the Fourth Proportional to 3,069.70, 4,605.46 and 1,428.23

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Solution

The fourth proportional to 3,069.70, 4,605.46 and 1,428.23 is: 2,142.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,069.70 : 4,605.46 = 1,428.23 : x
  2. Step 2: Convert to fraction form
    3,069.70/4,605.46 = 1,428.23/x
  3. Step 3: Cross multiply
    3,069.70x = 4,605.46 × 1,428.23
  4. Step 4: Simplify right side
    3,069.70x = 6,577,664.08
  5. Step 5: Solve for x
    x = 6,577,664.08/3,069.70
  6. Step 6: Final answer
    x = 2,142.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.