Home / 5,515.08-7,610.19-3,157.68

Finding the Fourth Proportional to 5,515.08, 7,610.19 and 3,157.68

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Solution

The fourth proportional to 5,515.08, 7,610.19 and 3,157.68 is: 4,357.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.08 : 7,610.19 = 3,157.68 : x
  2. Step 2: Convert to fraction form
    5,515.08/7,610.19 = 3,157.68/x
  3. Step 3: Cross multiply
    5,515.08x = 7,610.19 × 3,157.68
  4. Step 4: Simplify right side
    5,515.08x = 24,030,544.76
  5. Step 5: Solve for x
    x = 24,030,544.76/5,515.08
  6. Step 6: Final answer
    x = 4,357.24

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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.