Home / 2,025.60-2,795.64-1,186.80

Finding the Fourth Proportional to 2,025.60, 2,795.64 and 1,186.80

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Solution

The fourth proportional to 2,025.60, 2,795.64 and 1,186.80 is: 1,637.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,025.60 : 2,795.64 = 1,186.80 : x
  2. Step 2: Convert to fraction form
    2,025.60/2,795.64 = 1,186.80/x
  3. Step 3: Cross multiply
    2,025.60x = 2,795.64 × 1,186.80
  4. Step 4: Simplify right side
    2,025.60x = 3,317,865.55
  5. Step 5: Solve for x
    x = 3,317,865.55/2,025.60
  6. Step 6: Final answer
    x = 1,637.97

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1.5x scale

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.