Home / 4,254.69-6,378.98-2,147.63

Finding the Fourth Proportional to 4,254.69, 6,378.98 and 2,147.63

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Solution

The fourth proportional to 4,254.69, 6,378.98 and 2,147.63 is: 3,219.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,254.69 : 6,378.98 = 2,147.63 : x
  2. Step 2: Convert to fraction form
    4,254.69/6,378.98 = 2,147.63/x
  3. Step 3: Cross multiply
    4,254.69x = 6,378.98 × 2,147.63
  4. Step 4: Simplify right side
    4,254.69x = 13,699,694.03
  5. Step 5: Solve for x
    x = 13,699,694.03/4,254.69
  6. Step 6: Final answer
    x = 3,219.90

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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.