Home / 2,078.54-3,117.30-1,199.18

Finding the Fourth Proportional to 2,078.54, 3,117.30 and 1,199.18

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Solution

The fourth proportional to 2,078.54, 3,117.30 and 1,199.18 is: 1,798.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078.54 : 3,117.30 = 1,199.18 : x
  2. Step 2: Convert to fraction form
    2,078.54/3,117.30 = 1,199.18/x
  3. Step 3: Cross multiply
    2,078.54x = 3,117.30 × 1,199.18
  4. Step 4: Simplify right side
    2,078.54x = 3,738,203.81
  5. Step 5: Solve for x
    x = 3,738,203.81/2,078.54
  6. Step 6: Final answer
    x = 1,798.48

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1.5x scale

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.