Home / 3,378.25-5,066-1,298.32

Finding the Fourth Proportional to 3,378.25, 5,066 and 1,298.32

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Solution

The fourth proportional to 3,378.25, 5,066 and 1,298.32 is: 1,946.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.25 : 5,066 = 1,298.32 : x
  2. Step 2: Convert to fraction form
    3,378.25/5,066 = 1,298.32/x
  3. Step 3: Cross multiply
    3,378.25x = 5,066 × 1,298.32
  4. Step 4: Simplify right side
    3,378.25x = 6,577,289.12
  5. Step 5: Solve for x
    x = 6,577,289.12/3,378.25
  6. Step 6: Final answer
    x = 1,946.95

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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.