Home / 6,856.51-9,461.82-3,872.25

Finding the Fourth Proportional to 6,856.51, 9,461.82 and 3,872.25

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Solution

The fourth proportional to 6,856.51, 9,461.82 and 3,872.25 is: 5,343.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,856.51 : 9,461.82 = 3,872.25 : x
  2. Step 2: Convert to fraction form
    6,856.51/9,461.82 = 3,872.25/x
  3. Step 3: Cross multiply
    6,856.51x = 9,461.82 × 3,872.25
  4. Step 4: Simplify right side
    6,856.51x = 36,638,485.19
  5. Step 5: Solve for x
    x = 36,638,485.19/6,856.51
  6. Step 6: Final answer
    x = 5,343.61

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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.