Home / 7,762.35-11,643.56-3,319.37

Finding the Fourth Proportional to 7,762.35, 11,643.56 and 3,319.37

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Solution

The fourth proportional to 7,762.35, 11,643.56 and 3,319.37 is: 4,979.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,762.35 : 11,643.56 = 3,319.37 : x
  2. Step 2: Convert to fraction form
    7,762.35/11,643.56 = 3,319.37/x
  3. Step 3: Cross multiply
    7,762.35x = 11,643.56 × 3,319.37
  4. Step 4: Simplify right side
    7,762.35x = 38,649,283.76
  5. Step 5: Solve for x
    x = 38,649,283.76/7,762.35
  6. Step 6: Final answer
    x = 4,979.07

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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.