Home / 5,515.05-7,610.16-3,157.32

Finding the Fourth Proportional to 5,515.05, 7,610.16 and 3,157.32

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Solution

The fourth proportional to 5,515.05, 7,610.16 and 3,157.32 is: 4,356.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.05 : 7,610.16 = 3,157.32 : x
  2. Step 2: Convert to fraction form
    5,515.05/7,610.16 = 3,157.32/x
  3. Step 3: Cross multiply
    5,515.05x = 7,610.16 × 3,157.32
  4. Step 4: Simplify right side
    5,515.05x = 24,027,710.37
  5. Step 5: Solve for x
    x = 24,027,710.37/5,515.05
  6. Step 6: Final answer
    x = 4,356.75

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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.