Home / 2,946.39-4,065.87-1,620.07

Finding the Fourth Proportional to 2,946.39, 4,065.87 and 1,620.07

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Solution

The fourth proportional to 2,946.39, 4,065.87 and 1,620.07 is: 2,235.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,946.39 : 4,065.87 = 1,620.07 : x
  2. Step 2: Convert to fraction form
    2,946.39/4,065.87 = 1,620.07/x
  3. Step 3: Cross multiply
    2,946.39x = 4,065.87 × 1,620.07
  4. Step 4: Simplify right side
    2,946.39x = 6,586,989.92
  5. Step 5: Solve for x
    x = 6,586,989.92/2,946.39
  6. Step 6: Final answer
    x = 2,235.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.