Home / 2,840.45-3,919.82-1,598.45

Finding the Fourth Proportional to 2,840.45, 3,919.82 and 1,598.45

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Solution

The fourth proportional to 2,840.45, 3,919.82 and 1,598.45 is: 2,205.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840.45 : 3,919.82 = 1,598.45 : x
  2. Step 2: Convert to fraction form
    2,840.45/3,919.82 = 1,598.45/x
  3. Step 3: Cross multiply
    2,840.45x = 3,919.82 × 1,598.45
  4. Step 4: Simplify right side
    2,840.45x = 6,265,608.69
  5. Step 5: Solve for x
    x = 6,265,608.69/2,840.45
  6. Step 6: Final answer
    x = 2,205.85

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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.