Home / 2,680.58-3,690.78-2,434.54

Finding the Fourth Proportional to 2,680.58, 3,690.78 and 2,434.54

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Solution

The fourth proportional to 2,680.58, 3,690.78 and 2,434.54 is: 3,352.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.58 : 3,690.78 = 2,434.54 : x
  2. Step 2: Convert to fraction form
    2,680.58/3,690.78 = 2,434.54/x
  3. Step 3: Cross multiply
    2,680.58x = 3,690.78 × 2,434.54
  4. Step 4: Simplify right side
    2,680.58x = 8,985,351.54
  5. Step 5: Solve for x
    x = 8,985,351.54/2,680.58
  6. Step 6: Final answer
    x = 3,352.02

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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.