Home / 6,394.02-8,816.49-5,211.42

Finding the Fourth Proportional to 6,394.02, 8,816.49 and 5,211.42

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Solution

The fourth proportional to 6,394.02, 8,816.49 and 5,211.42 is: 7,185.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,394.02 : 8,816.49 = 5,211.42 : x
  2. Step 2: Convert to fraction form
    6,394.02/8,816.49 = 5,211.42/x
  3. Step 3: Cross multiply
    6,394.02x = 8,816.49 × 5,211.42
  4. Step 4: Simplify right side
    6,394.02x = 45,946,432.32
  5. Step 5: Solve for x
    x = 45,946,432.32/6,394.02
  6. Step 6: Final answer
    x = 7,185.84

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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.