Home / 2,154,126.98-2,972,713.33-1,187,259.75

Finding the Fourth Proportional to 2,154,126.98, 2,972,713.33 and 1,187,259.75

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Solution

The fourth proportional to 2,154,126.98, 2,972,713.33 and 1,187,259.75 is: 1,638,428.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154,126.98 : 2,972,713.33 = 1,187,259.75 : x
  2. Step 2: Convert to fraction form
    2,154,126.98/2,972,713.33 = 1,187,259.75/x
  3. Step 3: Cross multiply
    2,154,126.98x = 2,972,713.33 × 1,187,259.75
  4. Step 4: Simplify right side
    2,154,126.98x = 3,529,382,884,997.47
  5. Step 5: Solve for x
    x = 3,529,382,884,997.47/2,154,126.98
  6. Step 6: Final answer
    x = 1,638,428.43

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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.