Home / 2,867,641.89-3,956,882.75-1,643,722.20

Finding the Fourth Proportional to 2,867,641.89, 3,956,882.75 and 1,643,722.20

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Solution

The fourth proportional to 2,867,641.89, 3,956,882.75 and 1,643,722.20 is: 2,268,071.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,867,641.89 : 3,956,882.75 = 1,643,722.20 : x
  2. Step 2: Convert to fraction form
    2,867,641.89/3,956,882.75 = 1,643,722.20/x
  3. Step 3: Cross multiply
    2,867,641.89x = 3,956,882.75 × 1,643,722.20
  4. Step 4: Simplify right side
    2,867,641.89x = 6,504,016,031,755.71
  5. Step 5: Solve for x
    x = 6,504,016,031,755.71/2,867,641.89
  6. Step 6: Final answer
    x = 2,268,071.22

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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.