Home / 3,379.76-4,665.48-2,385.80

Finding the Fourth Proportional to 3,379.76, 4,665.48 and 2,385.80

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Solution

The fourth proportional to 3,379.76, 4,665.48 and 2,385.80 is: 3,293.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.76 : 4,665.48 = 2,385.80 : x
  2. Step 2: Convert to fraction form
    3,379.76/4,665.48 = 2,385.80/x
  3. Step 3: Cross multiply
    3,379.76x = 4,665.48 × 2,385.80
  4. Step 4: Simplify right side
    3,379.76x = 11,130,902.18
  5. Step 5: Solve for x
    x = 11,130,902.18/3,379.76
  6. Step 6: Final answer
    x = 3,293.40

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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.