Home / 7,785.36-10,745.19-4,641.75

Finding the Fourth Proportional to 7,785.36, 10,745.19 and 4,641.75

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Solution

The fourth proportional to 7,785.36, 10,745.19 and 4,641.75 is: 6,406.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,785.36 : 10,745.19 = 4,641.75 : x
  2. Step 2: Convert to fraction form
    7,785.36/10,745.19 = 4,641.75/x
  3. Step 3: Cross multiply
    7,785.36x = 10,745.19 × 4,641.75
  4. Step 4: Simplify right side
    7,785.36x = 49,876,485.68
  5. Step 5: Solve for x
    x = 49,876,485.68/7,785.36
  6. Step 6: Final answer
    x = 6,406.45

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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.