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Finding the Fourth Proportional to 7,889.07, 11,830.14 and 2,955.25

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Solution

The fourth proportional to 7,889.07, 11,830.14 and 2,955.25 is: 4,431.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889.07 : 11,830.14 = 2,955.25 : x
  2. Step 2: Convert to fraction form
    7,889.07/11,830.14 = 2,955.25/x
  3. Step 3: Cross multiply
    7,889.07x = 11,830.14 × 2,955.25
  4. Step 4: Simplify right side
    7,889.07x = 34,961,047.10
  5. Step 5: Solve for x
    x = 34,961,047.10/7,889.07
  6. Step 6: Final answer
    x = 4,431.58

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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.