Home / 2,946.28-4,065.99-1,620.04

Finding the Fourth Proportional to 2,946.28, 4,065.99 and 1,620.04

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Solution

The fourth proportional to 2,946.28, 4,065.99 and 1,620.04 is: 2,235.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,946.28 : 4,065.99 = 1,620.04 : x
  2. Step 2: Convert to fraction form
    2,946.28/4,065.99 = 1,620.04/x
  3. Step 3: Cross multiply
    2,946.28x = 4,065.99 × 1,620.04
  4. Step 4: Simplify right side
    2,946.28x = 6,587,066.44
  5. Step 5: Solve for x
    x = 6,587,066.44/2,946.28
  6. Step 6: Final answer
    x = 2,235.72

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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.