Home / 2,860.24-4,290.35-1,879.25

Finding the Fourth Proportional to 2,860.24, 4,290.35 and 1,879.25

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Solution

The fourth proportional to 2,860.24, 4,290.35 and 1,879.25 is: 2,818.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.24 : 4,290.35 = 1,879.25 : x
  2. Step 2: Convert to fraction form
    2,860.24/4,290.35 = 1,879.25/x
  3. Step 3: Cross multiply
    2,860.24x = 4,290.35 × 1,879.25
  4. Step 4: Simplify right side
    2,860.24x = 8,062,623.48
  5. Step 5: Solve for x
    x = 8,062,623.48/2,860.24
  6. Step 6: Final answer
    x = 2,818.87

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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.