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Finding the Fourth Proportional to 6,300.80, 8,698.08 and 3,946.40

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Solution

The fourth proportional to 6,300.80, 8,698.08 and 3,946.40 is: 5,447.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,300.80 : 8,698.08 = 3,946.40 : x
  2. Step 2: Convert to fraction form
    6,300.80/8,698.08 = 3,946.40/x
  3. Step 3: Cross multiply
    6,300.80x = 8,698.08 × 3,946.40
  4. Step 4: Simplify right side
    6,300.80x = 34,326,102.91
  5. Step 5: Solve for x
    x = 34,326,102.91/6,300.80
  6. Step 6: Final answer
    x = 5,447.90

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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.