Home / 7,022.03-9,689.69-3,878.01

Finding the Fourth Proportional to 7,022.03, 9,689.69 and 3,878.01

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Solution

The fourth proportional to 7,022.03, 9,689.69 and 3,878.01 is: 5,351.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,022.03 : 9,689.69 = 3,878.01 : x
  2. Step 2: Convert to fraction form
    7,022.03/9,689.69 = 3,878.01/x
  3. Step 3: Cross multiply
    7,022.03x = 9,689.69 × 3,878.01
  4. Step 4: Simplify right side
    7,022.03x = 37,576,724.41
  5. Step 5: Solve for x
    x = 37,576,724.41/7,022.03
  6. Step 6: Final answer
    x = 5,351.27

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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.