Home / 4,684.94-7,028.42-1,398.30

Finding the Fourth Proportional to 4,684.94, 7,028.42 and 1,398.30

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Solution

The fourth proportional to 4,684.94, 7,028.42 and 1,398.30 is: 2,097.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,684.94 : 7,028.42 = 1,398.30 : x
  2. Step 2: Convert to fraction form
    4,684.94/7,028.42 = 1,398.30/x
  3. Step 3: Cross multiply
    4,684.94x = 7,028.42 × 1,398.30
  4. Step 4: Simplify right side
    4,684.94x = 9,827,839.69
  5. Step 5: Solve for x
    x = 9,827,839.69/4,684.94
  6. Step 6: Final answer
    x = 2,097.75

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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.