Home / 7,211-10,811.64-5,801.60

Finding the Fourth Proportional to 7,211, 10,811.64 and 5,801.60

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Solution

The fourth proportional to 7,211, 10,811.64 and 5,801.60 is: 8,698.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211 : 10,811.64 = 5,801.60 : x
  2. Step 2: Convert to fraction form
    7,211/10,811.64 = 5,801.60/x
  3. Step 3: Cross multiply
    7,211x = 10,811.64 × 5,801.60
  4. Step 4: Simplify right side
    7,211x = 62,724,810.62
  5. Step 5: Solve for x
    x = 62,724,810.62/7,211
  6. Step 6: Final answer
    x = 8,698.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.