Home / 4,380.76-6,048.81-2,890.80

Finding the Fourth Proportional to 4,380.76, 6,048.81 and 2,890.80

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Solution

The fourth proportional to 4,380.76, 6,048.81 and 2,890.80 is: 3,991.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,380.76 : 6,048.81 = 2,890.80 : x
  2. Step 2: Convert to fraction form
    4,380.76/6,048.81 = 2,890.80/x
  3. Step 3: Cross multiply
    4,380.76x = 6,048.81 × 2,890.80
  4. Step 4: Simplify right side
    4,380.76x = 17,485,899.95
  5. Step 5: Solve for x
    x = 17,485,899.95/4,380.76
  6. Step 6: Final answer
    x = 3,991.52

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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.