Home / 2,154,014.12-2,972,418.42-1,187,141.48

Finding the Fourth Proportional to 2,154,014.12, 2,972,418.42 and 1,187,141.48

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Solution

The fourth proportional to 2,154,014.12, 2,972,418.42 and 1,187,141.48 is: 1,638,188.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154,014.12 : 2,972,418.42 = 1,187,141.48 : x
  2. Step 2: Convert to fraction form
    2,154,014.12/2,972,418.42 = 1,187,141.48/x
  3. Step 3: Cross multiply
    2,154,014.12x = 2,972,418.42 × 1,187,141.48
  4. Step 4: Simplify right side
    2,154,014.12x = 3,528,681,202,298.06
  5. Step 5: Solve for x
    x = 3,528,681,202,298.06/2,154,014.12
  6. Step 6: Final answer
    x = 1,638,188.52

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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.