Home / 2,760.75-4,141.73-1,117.40

Finding the Fourth Proportional to 2,760.75, 4,141.73 and 1,117.40

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Solution

The fourth proportional to 2,760.75, 4,141.73 and 1,117.40 is: 1,676.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.75 : 4,141.73 = 1,117.40 : x
  2. Step 2: Convert to fraction form
    2,760.75/4,141.73 = 1,117.40/x
  3. Step 3: Cross multiply
    2,760.75x = 4,141.73 × 1,117.40
  4. Step 4: Simplify right side
    2,760.75x = 4,627,951.19
  5. Step 5: Solve for x
    x = 4,627,951.19/2,760.75
  6. Step 6: Final answer
    x = 1,676.34

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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.