Home / 3,327.46-4,991.76-1,378.60

Finding the Fourth Proportional to 3,327.46, 4,991.76 and 1,378.60

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Solution

The fourth proportional to 3,327.46, 4,991.76 and 1,378.60 is: 2,068.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,327.46 : 4,991.76 = 1,378.60 : x
  2. Step 2: Convert to fraction form
    3,327.46/4,991.76 = 1,378.60/x
  3. Step 3: Cross multiply
    3,327.46x = 4,991.76 × 1,378.60
  4. Step 4: Simplify right side
    3,327.46x = 6,881,640.34
  5. Step 5: Solve for x
    x = 6,881,640.34/3,327.46
  6. Step 6: Final answer
    x = 2,068.14

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1.5x scale

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.