Home / 2,819,879.76-3,891,438.96-1,530,721

Finding the Fourth Proportional to 2,819,879.76, 3,891,438.96 and 1,530,721

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Solution

The fourth proportional to 2,819,879.76, 3,891,438.96 and 1,530,721 is: 2,112,397.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819,879.76 : 3,891,438.96 = 1,530,721 : x
  2. Step 2: Convert to fraction form
    2,819,879.76/3,891,438.96 = 1,530,721/x
  3. Step 3: Cross multiply
    2,819,879.76x = 3,891,438.96 × 1,530,721
  4. Step 4: Simplify right side
    2,819,879.76x = 5,956,707,336,290.16
  5. Step 5: Solve for x
    x = 5,956,707,336,290.16/2,819,879.76
  6. Step 6: Final answer
    x = 2,112,397.64

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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.