Home / 6,371.72-9,554.46-1,989.16

Finding the Fourth Proportional to 6,371.72, 9,554.46 and 1,989.16

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Solution

The fourth proportional to 6,371.72, 9,554.46 and 1,989.16 is: 2,982.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,371.72 : 9,554.46 = 1,989.16 : x
  2. Step 2: Convert to fraction form
    6,371.72/9,554.46 = 1,989.16/x
  3. Step 3: Cross multiply
    6,371.72x = 9,554.46 × 1,989.16
  4. Step 4: Simplify right side
    6,371.72x = 19,005,349.65
  5. Step 5: Solve for x
    x = 19,005,349.65/6,371.72
  6. Step 6: Final answer
    x = 2,982.77

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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.