Home / 2,155,688.20-3,228,002.70-2,056,155.40

Finding the Fourth Proportional to 2,155,688.20, 3,228,002.70 and 2,056,155.40

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Solution

The fourth proportional to 2,155,688.20, 3,228,002.70 and 2,056,155.40 is: 3,078,958.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155,688.20 : 3,228,002.70 = 2,056,155.40 : x
  2. Step 2: Convert to fraction form
    2,155,688.20/3,228,002.70 = 2,056,155.40/x
  3. Step 3: Cross multiply
    2,155,688.20x = 3,228,002.70 × 2,056,155.40
  4. Step 4: Simplify right side
    2,155,688.20x = 6,637,275,182,819.58
  5. Step 5: Solve for x
    x = 6,637,275,182,819.58/2,155,688.20
  6. Step 6: Final answer
    x = 3,078,958.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.