Home / 7,629.78-11,445.08-2,435.25

Finding the Fourth Proportional to 7,629.78, 11,445.08 and 2,435.25

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Solution

The fourth proportional to 7,629.78, 11,445.08 and 2,435.25 is: 3,653.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,629.78 : 11,445.08 = 2,435.25 : x
  2. Step 2: Convert to fraction form
    7,629.78/11,445.08 = 2,435.25/x
  3. Step 3: Cross multiply
    7,629.78x = 11,445.08 × 2,435.25
  4. Step 4: Simplify right side
    7,629.78x = 27,871,631.07
  5. Step 5: Solve for x
    x = 27,871,631.07/7,629.78
  6. Step 6: Final answer
    x = 3,653.01

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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.