Home / 2,890,357.20-3,987,972.36-1,667,036.88

Finding the Fourth Proportional to 2,890,357.20, 3,987,972.36 and 1,667,036.88

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Solution

The fourth proportional to 2,890,357.20, 3,987,972.36 and 1,667,036.88 is: 2,300,095.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890,357.20 : 3,987,972.36 = 1,667,036.88 : x
  2. Step 2: Convert to fraction form
    2,890,357.20/3,987,972.36 = 1,667,036.88/x
  3. Step 3: Cross multiply
    2,890,357.20x = 3,987,972.36 × 1,667,036.88
  4. Step 4: Simplify right side
    2,890,357.20x = 6,648,097,000,540.64
  5. Step 5: Solve for x
    x = 6,648,097,000,540.64/2,890,357.20
  6. Step 6: Final answer
    x = 2,300,095.30

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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.