Home / 5,509.85-7,598.36-3,618.09

Finding the Fourth Proportional to 5,509.85, 7,598.36 and 3,618.09

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Solution

The fourth proportional to 5,509.85, 7,598.36 and 3,618.09 is: 4,989.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,509.85 : 7,598.36 = 3,618.09 : x
  2. Step 2: Convert to fraction form
    5,509.85/7,598.36 = 3,618.09/x
  3. Step 3: Cross multiply
    5,509.85x = 7,598.36 × 3,618.09
  4. Step 4: Simplify right side
    5,509.85x = 27,491,559.38
  5. Step 5: Solve for x
    x = 27,491,559.38/5,509.85
  6. Step 6: Final answer
    x = 4,989.53

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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.