Home / 7,745.37-10,688.67-4,208.60

Finding the Fourth Proportional to 7,745.37, 10,688.67 and 4,208.60

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Solution

The fourth proportional to 7,745.37, 10,688.67 and 4,208.60 is: 5,807.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,745.37 : 10,688.67 = 4,208.60 : x
  2. Step 2: Convert to fraction form
    7,745.37/10,688.67 = 4,208.60/x
  3. Step 3: Cross multiply
    7,745.37x = 10,688.67 × 4,208.60
  4. Step 4: Simplify right side
    7,745.37x = 44,984,283.12
  5. Step 5: Solve for x
    x = 44,984,283.12/7,745.37
  6. Step 6: Final answer
    x = 5,807.89

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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.