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Finding the Fourth Proportional to 2,865.97, 3,955.02 and 1,607.02

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Solution

The fourth proportional to 2,865.97, 3,955.02 and 1,607.02 is: 2,217.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865.97 : 3,955.02 = 1,607.02 : x
  2. Step 2: Convert to fraction form
    2,865.97/3,955.02 = 1,607.02/x
  3. Step 3: Cross multiply
    2,865.97x = 3,955.02 × 1,607.02
  4. Step 4: Simplify right side
    2,865.97x = 6,355,801.18
  5. Step 5: Solve for x
    x = 6,355,801.18/2,865.97
  6. Step 6: Final answer
    x = 2,217.68

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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.