Home / 7,188.56-10,782.70-3,922.45

Finding the Fourth Proportional to 7,188.56, 10,782.70 and 3,922.45

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Solution

The fourth proportional to 7,188.56, 10,782.70 and 3,922.45 is: 5,883.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,188.56 : 10,782.70 = 3,922.45 : x
  2. Step 2: Convert to fraction form
    7,188.56/10,782.70 = 3,922.45/x
  3. Step 3: Cross multiply
    7,188.56x = 10,782.70 × 3,922.45
  4. Step 4: Simplify right side
    7,188.56x = 42,294,601.62
  5. Step 5: Solve for x
    x = 42,294,601.62/7,188.56
  6. Step 6: Final answer
    x = 5,883.60

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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.