Home / 6,271.20-9,405.74-2,939.80

Finding the Fourth Proportional to 6,271.20, 9,405.74 and 2,939.80

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Solution

The fourth proportional to 6,271.20, 9,405.74 and 2,939.80 is: 4,409.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,271.20 : 9,405.74 = 2,939.80 : x
  2. Step 2: Convert to fraction form
    6,271.20/9,405.74 = 2,939.80/x
  3. Step 3: Cross multiply
    6,271.20x = 9,405.74 × 2,939.80
  4. Step 4: Simplify right side
    6,271.20x = 27,650,994.45
  5. Step 5: Solve for x
    x = 27,650,994.45/6,271.20
  6. Step 6: Final answer
    x = 4,409.20

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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.