Home / 2,890,534-3,982,513.80-1,908,729.76

Finding the Fourth Proportional to 2,890,534, 3,982,513.80 and 1,908,729.76

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Solution

The fourth proportional to 2,890,534, 3,982,513.80 and 1,908,729.76 is: 2,629,805.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890,534 : 3,982,513.80 = 1,908,729.76 : x
  2. Step 2: Convert to fraction form
    2,890,534/3,982,513.80 = 1,908,729.76/x
  3. Step 3: Cross multiply
    2,890,534x = 3,982,513.80 × 1,908,729.76
  4. Step 4: Simplify right side
    2,890,534x = 7,601,542,609,670.69
  5. Step 5: Solve for x
    x = 7,601,542,609,670.69/2,890,534
  6. Step 6: Final answer
    x = 2,629,805.64

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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.