Home / 4,200.68-6,291.90-2,811.93

Finding the Fourth Proportional to 4,200.68, 6,291.90 and 2,811.93

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Solution

The fourth proportional to 4,200.68, 6,291.90 and 2,811.93 is: 4,211.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,200.68 : 6,291.90 = 2,811.93 : x
  2. Step 2: Convert to fraction form
    4,200.68/6,291.90 = 2,811.93/x
  3. Step 3: Cross multiply
    4,200.68x = 6,291.90 × 2,811.93
  4. Step 4: Simplify right side
    4,200.68x = 17,692,382.37
  5. Step 5: Solve for x
    x = 17,692,382.37/4,200.68
  6. Step 6: Final answer
    x = 4,211.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.