Home / 2,858.26-4,287.20-1,762.78

Finding the Fourth Proportional to 2,858.26, 4,287.20 and 1,762.78

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Solution

The fourth proportional to 2,858.26, 4,287.20 and 1,762.78 is: 2,644.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.26 : 4,287.20 = 1,762.78 : x
  2. Step 2: Convert to fraction form
    2,858.26/4,287.20 = 1,762.78/x
  3. Step 3: Cross multiply
    2,858.26x = 4,287.20 × 1,762.78
  4. Step 4: Simplify right side
    2,858.26x = 7,557,390.42
  5. Step 5: Solve for x
    x = 7,557,390.42/2,858.26
  6. Step 6: Final answer
    x = 2,644.05

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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.