Home / 2,158,133.82-2,978,224.22-1,191,263.85

Finding the Fourth Proportional to 2,158,133.82, 2,978,224.22 and 1,191,263.85

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Solution

The fourth proportional to 2,158,133.82, 2,978,224.22 and 1,191,263.85 is: 1,643,943.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,133.82 : 2,978,224.22 = 1,191,263.85 : x
  2. Step 2: Convert to fraction form
    2,158,133.82/2,978,224.22 = 1,191,263.85/x
  3. Step 3: Cross multiply
    2,158,133.82x = 2,978,224.22 × 1,191,263.85
  4. Step 4: Simplify right side
    2,158,133.82x = 3,547,850,867,698.40
  5. Step 5: Solve for x
    x = 3,547,850,867,698.40/2,158,133.82
  6. Step 6: Final answer
    x = 1,643,943.87

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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.