Home / 2,560.78-3,518.55-2,035.90

Finding the Fourth Proportional to 2,560.78, 3,518.55 and 2,035.90

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Solution

The fourth proportional to 2,560.78, 3,518.55 and 2,035.90 is: 2,797.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,560.78 : 3,518.55 = 2,035.90 : x
  2. Step 2: Convert to fraction form
    2,560.78/3,518.55 = 2,035.90/x
  3. Step 3: Cross multiply
    2,560.78x = 3,518.55 × 2,035.90
  4. Step 4: Simplify right side
    2,560.78x = 7,163,415.95
  5. Step 5: Solve for x
    x = 7,163,415.95/2,560.78
  6. Step 6: Final answer
    x = 2,797.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.