Home / 2,138,931.81-2,951,674.97-1,172,015.37

Finding the Fourth Proportional to 2,138,931.81, 2,951,674.97 and 1,172,015.37

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Solution

The fourth proportional to 2,138,931.81, 2,951,674.97 and 1,172,015.37 is: 1,617,353.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,931.81 : 2,951,674.97 = 1,172,015.37 : x
  2. Step 2: Convert to fraction form
    2,138,931.81/2,951,674.97 = 1,172,015.37/x
  3. Step 3: Cross multiply
    2,138,931.81x = 2,951,674.97 × 1,172,015.37
  4. Step 4: Simplify right side
    2,138,931.81x = 3,459,408,426,224.21
  5. Step 5: Solve for x
    x = 3,459,408,426,224.21/2,138,931.81
  6. Step 6: Final answer
    x = 1,617,353.30

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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.