Home / 3,077.60-4,246.32-2,808.80

Finding the Fourth Proportional to 3,077.60, 4,246.32 and 2,808.80

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Solution

The fourth proportional to 3,077.60, 4,246.32 and 2,808.80 is: 3,875.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077.60 : 4,246.32 = 2,808.80 : x
  2. Step 2: Convert to fraction form
    3,077.60/4,246.32 = 2,808.80/x
  3. Step 3: Cross multiply
    3,077.60x = 4,246.32 × 2,808.80
  4. Step 4: Simplify right side
    3,077.60x = 11,927,063.62
  5. Step 5: Solve for x
    x = 11,927,063.62/3,077.60
  6. Step 6: Final answer
    x = 3,875.44

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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.