Home / 3,521.37-5,281.61-1,181.28

Finding the Fourth Proportional to 3,521.37, 5,281.61 and 1,181.28

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Solution

The fourth proportional to 3,521.37, 5,281.61 and 1,181.28 is: 1,771.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.37 : 5,281.61 = 1,181.28 : x
  2. Step 2: Convert to fraction form
    3,521.37/5,281.61 = 1,181.28/x
  3. Step 3: Cross multiply
    3,521.37x = 5,281.61 × 1,181.28
  4. Step 4: Simplify right side
    3,521.37x = 6,239,074.16
  5. Step 5: Solve for x
    x = 6,239,074.16/3,521.37
  6. Step 6: Final answer
    x = 1,771.77

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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.