Home / 2,891,788.72-3,990,668.56-1,602,822.88

Finding the Fourth Proportional to 2,891,788.72, 3,990,668.56 and 1,602,822.88

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Solution

The fourth proportional to 2,891,788.72, 3,990,668.56 and 1,602,822.88 is: 2,211,895.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891,788.72 : 3,990,668.56 = 1,602,822.88 : x
  2. Step 2: Convert to fraction form
    2,891,788.72/3,990,668.56 = 1,602,822.88/x
  3. Step 3: Cross multiply
    2,891,788.72x = 3,990,668.56 × 1,602,822.88
  4. Step 4: Simplify right side
    2,891,788.72x = 6,396,334,874,464.65
  5. Step 5: Solve for x
    x = 6,396,334,874,464.65/2,891,788.72
  6. Step 6: Final answer
    x = 2,211,895.64

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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.