Home / 2,121,787.70-2,928,144.30-1,154,871.26

Finding the Fourth Proportional to 2,121,787.70, 2,928,144.30 and 1,154,871.26

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Solution

The fourth proportional to 2,121,787.70, 2,928,144.30 and 1,154,871.26 is: 1,593,764.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121,787.70 : 2,928,144.30 = 1,154,871.26 : x
  2. Step 2: Convert to fraction form
    2,121,787.70/2,928,144.30 = 1,154,871.26/x
  3. Step 3: Cross multiply
    2,121,787.70x = 2,928,144.30 × 1,154,871.26
  4. Step 4: Simplify right side
    2,121,787.70x = 3,381,629,697,202.82
  5. Step 5: Solve for x
    x = 3,381,629,697,202.82/2,121,787.70
  6. Step 6: Final answer
    x = 1,593,764.40

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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.