Home / 3,391.08-4,678.98-1,993.32

Finding the Fourth Proportional to 3,391.08, 4,678.98 and 1,993.32

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Solution

The fourth proportional to 3,391.08, 4,678.98 and 1,993.32 is: 2,750.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.08 : 4,678.98 = 1,993.32 : x
  2. Step 2: Convert to fraction form
    3,391.08/4,678.98 = 1,993.32/x
  3. Step 3: Cross multiply
    3,391.08x = 4,678.98 × 1,993.32
  4. Step 4: Simplify right side
    3,391.08x = 9,326,704.41
  5. Step 5: Solve for x
    x = 9,326,704.41/3,391.08
  6. Step 6: Final answer
    x = 2,750.36

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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.