Home / 6,371.72-9,558.70-1,988.08

Finding the Fourth Proportional to 6,371.72, 9,558.70 and 1,988.08

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Solution

The fourth proportional to 6,371.72, 9,558.70 and 1,988.08 is: 2,982.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,371.72 : 9,558.70 = 1,988.08 : x
  2. Step 2: Convert to fraction form
    6,371.72/9,558.70 = 1,988.08/x
  3. Step 3: Cross multiply
    6,371.72x = 9,558.70 × 1,988.08
  4. Step 4: Simplify right side
    6,371.72x = 19,003,460.30
  5. Step 5: Solve for x
    x = 19,003,460.30/6,371.72
  6. Step 6: Final answer
    x = 2,982.47

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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.