Home / 2,858.20-4,287.40-910.52

Finding the Fourth Proportional to 2,858.20, 4,287.40 and 910.52

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Solution

The fourth proportional to 2,858.20, 4,287.40 and 910.52 is: 1,365.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.20 : 4,287.40 = 910.52 : x
  2. Step 2: Convert to fraction form
    2,858.20/4,287.40 = 910.52/x
  3. Step 3: Cross multiply
    2,858.20x = 4,287.40 × 910.52
  4. Step 4: Simplify right side
    2,858.20x = 3,903,763.45
  5. Step 5: Solve for x
    x = 3,903,763.45/2,858.20
  6. Step 6: Final answer
    x = 1,365.81

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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.