Home / 3,617.94-5,427.58-1,278.62

Finding the Fourth Proportional to 3,617.94, 5,427.58 and 1,278.62

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Solution

The fourth proportional to 3,617.94, 5,427.58 and 1,278.62 is: 1,918.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617.94 : 5,427.58 = 1,278.62 : x
  2. Step 2: Convert to fraction form
    3,617.94/5,427.58 = 1,278.62/x
  3. Step 3: Cross multiply
    3,617.94x = 5,427.58 × 1,278.62
  4. Step 4: Simplify right side
    3,617.94x = 6,939,812.34
  5. Step 5: Solve for x
    x = 6,939,812.34/3,617.94
  6. Step 6: Final answer
    x = 1,918.17

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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.