Home / 2,955.45-4,078.03-1,894.15

Finding the Fourth Proportional to 2,955.45, 4,078.03 and 1,894.15

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Solution

The fourth proportional to 2,955.45, 4,078.03 and 1,894.15 is: 2,613.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.45 : 4,078.03 = 1,894.15 : x
  2. Step 2: Convert to fraction form
    2,955.45/4,078.03 = 1,894.15/x
  3. Step 3: Cross multiply
    2,955.45x = 4,078.03 × 1,894.15
  4. Step 4: Simplify right side
    2,955.45x = 7,724,400.52
  5. Step 5: Solve for x
    x = 7,724,400.52/2,955.45
  6. Step 6: Final answer
    x = 2,613.61

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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.