Home / 6,297.20-8,690.56-3,645.20

Finding the Fourth Proportional to 6,297.20, 8,690.56 and 3,645.20

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Solution

The fourth proportional to 6,297.20, 8,690.56 and 3,645.20 is: 5,030.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,297.20 : 8,690.56 = 3,645.20 : x
  2. Step 2: Convert to fraction form
    6,297.20/8,690.56 = 3,645.20/x
  3. Step 3: Cross multiply
    6,297.20x = 8,690.56 × 3,645.20
  4. Step 4: Simplify right side
    6,297.20x = 31,678,829.31
  5. Step 5: Solve for x
    x = 31,678,829.31/6,297.20
  6. Step 6: Final answer
    x = 5,030.62

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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.