Home / 2,858.13-4,287.60-1,298.12

Finding the Fourth Proportional to 2,858.13, 4,287.60 and 1,298.12

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Solution

The fourth proportional to 2,858.13, 4,287.60 and 1,298.12 is: 1,947.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.13 : 4,287.60 = 1,298.12 : x
  2. Step 2: Convert to fraction form
    2,858.13/4,287.60 = 1,298.12/x
  3. Step 3: Cross multiply
    2,858.13x = 4,287.60 × 1,298.12
  4. Step 4: Simplify right side
    2,858.13x = 5,565,797.87
  5. Step 5: Solve for x
    x = 5,565,797.87/2,858.13
  6. Step 6: Final answer
    x = 1,947.36

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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.