Home / 7,718.22-11,580.71-3,338.55

Finding the Fourth Proportional to 7,718.22, 11,580.71 and 3,338.55

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Solution

The fourth proportional to 7,718.22, 11,580.71 and 3,338.55 is: 5,009.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.22 : 11,580.71 = 3,338.55 : x
  2. Step 2: Convert to fraction form
    7,718.22/11,580.71 = 3,338.55/x
  3. Step 3: Cross multiply
    7,718.22x = 11,580.71 × 3,338.55
  4. Step 4: Simplify right side
    7,718.22x = 38,662,762.68
  5. Step 5: Solve for x
    x = 38,662,762.68/7,718.22
  6. Step 6: Final answer
    x = 5,009.28

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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.