Home / 5,106.76-7,046.98-2,868.58

Finding the Fourth Proportional to 5,106.76, 7,046.98 and 2,868.58

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Solution

The fourth proportional to 5,106.76, 7,046.98 and 2,868.58 is: 3,958.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,106.76 : 7,046.98 = 2,868.58 : x
  2. Step 2: Convert to fraction form
    5,106.76/7,046.98 = 2,868.58/x
  3. Step 3: Cross multiply
    5,106.76x = 7,046.98 × 2,868.58
  4. Step 4: Simplify right side
    5,106.76x = 20,214,807.88
  5. Step 5: Solve for x
    x = 20,214,807.88/5,106.76
  6. Step 6: Final answer
    x = 3,958.44

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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.