Home / 5,519.63-7,615.79-3,730.45

Finding the Fourth Proportional to 5,519.63, 7,615.79 and 3,730.45

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Solution

The fourth proportional to 5,519.63, 7,615.79 and 3,730.45 is: 5,147.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,519.63 : 7,615.79 = 3,730.45 : x
  2. Step 2: Convert to fraction form
    5,519.63/7,615.79 = 3,730.45/x
  3. Step 3: Cross multiply
    5,519.63x = 7,615.79 × 3,730.45
  4. Step 4: Simplify right side
    5,519.63x = 28,410,314.09
  5. Step 5: Solve for x
    x = 28,410,314.09/5,519.63
  6. Step 6: Final answer
    x = 5,147.14

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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.