Home / 4,685.13-7,027.79-1,398.33

Finding the Fourth Proportional to 4,685.13, 7,027.79 and 1,398.33

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Solution

The fourth proportional to 4,685.13, 7,027.79 and 1,398.33 is: 2,097.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,685.13 : 7,027.79 = 1,398.33 : x
  2. Step 2: Convert to fraction form
    4,685.13/7,027.79 = 1,398.33/x
  3. Step 3: Cross multiply
    4,685.13x = 7,027.79 × 1,398.33
  4. Step 4: Simplify right side
    4,685.13x = 9,827,162.60
  5. Step 5: Solve for x
    x = 9,827,162.60/4,685.13
  6. Step 6: Final answer
    x = 2,097.52

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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.