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Finding the Fourth Proportional to 6,287.51, 8,676.75 and 3,454.43

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Solution

The fourth proportional to 6,287.51, 8,676.75 and 3,454.43 is: 4,767.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,287.51 : 8,676.75 = 3,454.43 : x
  2. Step 2: Convert to fraction form
    6,287.51/8,676.75 = 3,454.43/x
  3. Step 3: Cross multiply
    6,287.51x = 8,676.75 × 3,454.43
  4. Step 4: Simplify right side
    6,287.51x = 29,973,225.50
  5. Step 5: Solve for x
    x = 29,973,225.50/6,287.51
  6. Step 6: Final answer
    x = 4,767.11

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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.