Home / 4,685.43-7,028.05-1,398.45

Finding the Fourth Proportional to 4,685.43, 7,028.05 and 1,398.45

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Solution

The fourth proportional to 4,685.43, 7,028.05 and 1,398.45 is: 2,097.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,685.43 : 7,028.05 = 1,398.45 : x
  2. Step 2: Convert to fraction form
    4,685.43/7,028.05 = 1,398.45/x
  3. Step 3: Cross multiply
    4,685.43x = 7,028.05 × 1,398.45
  4. Step 4: Simplify right side
    4,685.43x = 9,828,376.52
  5. Step 5: Solve for x
    x = 9,828,376.52/4,685.43
  6. Step 6: Final answer
    x = 2,097.65

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.