Home / 6,343.45-8,753.49-3,690.40

Finding the Fourth Proportional to 6,343.45, 8,753.49 and 3,690.40

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Solution

The fourth proportional to 6,343.45, 8,753.49 and 3,690.40 is: 5,092.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,343.45 : 8,753.49 = 3,690.40 : x
  2. Step 2: Convert to fraction form
    6,343.45/8,753.49 = 3,690.40/x
  3. Step 3: Cross multiply
    6,343.45x = 8,753.49 × 3,690.40
  4. Step 4: Simplify right side
    6,343.45x = 32,303,879.50
  5. Step 5: Solve for x
    x = 32,303,879.50/6,343.45
  6. Step 6: Final answer
    x = 5,092.48

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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.