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Finding the Fourth Proportional to 4,798.39, 7,197.63 and 1,678.39

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Solution

The fourth proportional to 4,798.39, 7,197.63 and 1,678.39 is: 2,517.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,798.39 : 7,197.63 = 1,678.39 : x
  2. Step 2: Convert to fraction form
    4,798.39/7,197.63 = 1,678.39/x
  3. Step 3: Cross multiply
    4,798.39x = 7,197.63 × 1,678.39
  4. Step 4: Simplify right side
    4,798.39x = 12,080,430.22
  5. Step 5: Solve for x
    x = 12,080,430.22/4,798.39
  6. Step 6: Final answer
    x = 2,517.60

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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.