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Finding the Fourth Proportional to 4,818.30, 7,230.69 and 1,698.30

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Solution

The fourth proportional to 4,818.30, 7,230.69 and 1,698.30 is: 2,548.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,818.30 : 7,230.69 = 1,698.30 : x
  2. Step 2: Convert to fraction form
    4,818.30/7,230.69 = 1,698.30/x
  3. Step 3: Cross multiply
    4,818.30x = 7,230.69 × 1,698.30
  4. Step 4: Simplify right side
    4,818.30x = 12,279,880.83
  5. Step 5: Solve for x
    x = 12,279,880.83/4,818.30
  6. Step 6: Final answer
    x = 2,548.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.