Home / 2,317.69-3,198.93-1,478.20

Finding the Fourth Proportional to 2,317.69, 3,198.93 and 1,478.20

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Solution

The fourth proportional to 2,317.69, 3,198.93 and 1,478.20 is: 2,040.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,317.69 : 3,198.93 = 1,478.20 : x
  2. Step 2: Convert to fraction form
    2,317.69/3,198.93 = 1,478.20/x
  3. Step 3: Cross multiply
    2,317.69x = 3,198.93 × 1,478.20
  4. Step 4: Simplify right side
    2,317.69x = 4,728,658.33
  5. Step 5: Solve for x
    x = 4,728,658.33/2,317.69
  6. Step 6: Final answer
    x = 2,040.25

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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.