Home / 5,386.25-7,431.09-3,396.08

Finding the Fourth Proportional to 5,386.25, 7,431.09 and 3,396.08

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Solution

The fourth proportional to 5,386.25, 7,431.09 and 3,396.08 is: 4,685.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.25 : 7,431.09 = 3,396.08 : x
  2. Step 2: Convert to fraction form
    5,386.25/7,431.09 = 3,396.08/x
  3. Step 3: Cross multiply
    5,386.25x = 7,431.09 × 3,396.08
  4. Step 4: Simplify right side
    5,386.25x = 25,236,576.13
  5. Step 5: Solve for x
    x = 25,236,576.13/5,386.25
  6. Step 6: Final answer
    x = 4,685.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.