Home / 5,103.80-7,043.58-2,865.84

Finding the Fourth Proportional to 5,103.80, 7,043.58 and 2,865.84

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Solution

The fourth proportional to 5,103.80, 7,043.58 and 2,865.84 is: 3,955.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103.80 : 7,043.58 = 2,865.84 : x
  2. Step 2: Convert to fraction form
    5,103.80/7,043.58 = 2,865.84/x
  3. Step 3: Cross multiply
    5,103.80x = 7,043.58 × 2,865.84
  4. Step 4: Simplify right side
    5,103.80x = 20,185,773.31
  5. Step 5: Solve for x
    x = 20,185,773.31/5,103.80
  6. Step 6: Final answer
    x = 3,955.05

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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.