Home / 2,946.87-4,066.69-1,620.58

Finding the Fourth Proportional to 2,946.87, 4,066.69 and 1,620.58

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Solution

The fourth proportional to 2,946.87, 4,066.69 and 1,620.58 is: 2,236.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,946.87 : 4,066.69 = 1,620.58 : x
  2. Step 2: Convert to fraction form
    2,946.87/4,066.69 = 1,620.58/x
  3. Step 3: Cross multiply
    2,946.87x = 4,066.69 × 1,620.58
  4. Step 4: Simplify right side
    2,946.87x = 6,590,396.48
  5. Step 5: Solve for x
    x = 6,590,396.48/2,946.87
  6. Step 6: Final answer
    x = 2,236.41

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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.