Home / 2,025.60-3,055.20-1,929.60

Finding the Fourth Proportional to 2,025.60, 3,055.20 and 1,929.60

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Solution

The fourth proportional to 2,025.60, 3,055.20 and 1,929.60 is: 2,910.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,025.60 : 3,055.20 = 1,929.60 : x
  2. Step 2: Convert to fraction form
    2,025.60/3,055.20 = 1,929.60/x
  3. Step 3: Cross multiply
    2,025.60x = 3,055.20 × 1,929.60
  4. Step 4: Simplify right side
    2,025.60x = 5,895,313.92
  5. Step 5: Solve for x
    x = 5,895,313.92/2,025.60
  6. Step 6: Final answer
    x = 2,910.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.