Home / 4,881.22-6,735.65-2,891.45

Finding the Fourth Proportional to 4,881.22, 6,735.65 and 2,891.45

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Solution

The fourth proportional to 4,881.22, 6,735.65 and 2,891.45 is: 3,989.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,881.22 : 6,735.65 = 2,891.45 : x
  2. Step 2: Convert to fraction form
    4,881.22/6,735.65 = 2,891.45/x
  3. Step 3: Cross multiply
    4,881.22x = 6,735.65 × 2,891.45
  4. Step 4: Simplify right side
    4,881.22x = 19,475,797.57
  5. Step 5: Solve for x
    x = 19,475,797.57/4,881.22
  6. Step 6: Final answer
    x = 3,989.95

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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.