Home / 2,157,147.88-2,976,764.31-1,238,730.93

Finding the Fourth Proportional to 2,157,147.88, 2,976,764.31 and 1,238,730.93

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Solution

The fourth proportional to 2,157,147.88, 2,976,764.31 and 1,238,730.93 is: 1,709,391.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,147.88 : 2,976,764.31 = 1,238,730.93 : x
  2. Step 2: Convert to fraction form
    2,157,147.88/2,976,764.31 = 1,238,730.93/x
  3. Step 3: Cross multiply
    2,157,147.88x = 2,976,764.31 × 1,238,730.93
  4. Step 4: Simplify right side
    2,157,147.88x = 3,687,410,022,117.11
  5. Step 5: Solve for x
    x = 3,687,410,022,117.11/2,157,147.88
  6. Step 6: Final answer
    x = 1,709,391.40

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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.