Home / 2,858.88-4,288.73-1,298.87

Finding the Fourth Proportional to 2,858.88, 4,288.73 and 1,298.87

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Solution

The fourth proportional to 2,858.88, 4,288.73 and 1,298.87 is: 1,948.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.88 : 4,288.73 = 1,298.87 : x
  2. Step 2: Convert to fraction form
    2,858.88/4,288.73 = 1,298.87/x
  3. Step 3: Cross multiply
    2,858.88x = 4,288.73 × 1,298.87
  4. Step 4: Simplify right side
    2,858.88x = 5,570,474.80
  5. Step 5: Solve for x
    x = 5,570,474.80/2,858.88
  6. Step 6: Final answer
    x = 1,948.48

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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.