Home / 2,993.15-4,129.48-1,798.20

Finding the Fourth Proportional to 2,993.15, 4,129.48 and 1,798.20

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Solution

The fourth proportional to 2,993.15, 4,129.48 and 1,798.20 is: 2,480.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,993.15 : 4,129.48 = 1,798.20 : x
  2. Step 2: Convert to fraction form
    2,993.15/4,129.48 = 1,798.20/x
  3. Step 3: Cross multiply
    2,993.15x = 4,129.48 × 1,798.20
  4. Step 4: Simplify right side
    2,993.15x = 7,425,633.18
  5. Step 5: Solve for x
    x = 7,425,633.18/2,993.15
  6. Step 6: Final answer
    x = 2,480.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.