Home / 3,911.08-5,865.81-1,137.16

Finding the Fourth Proportional to 3,911.08, 5,865.81 and 1,137.16

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Solution

The fourth proportional to 3,911.08, 5,865.81 and 1,137.16 is: 1,705.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.08 : 5,865.81 = 1,137.16 : x
  2. Step 2: Convert to fraction form
    3,911.08/5,865.81 = 1,137.16/x
  3. Step 3: Cross multiply
    3,911.08x = 5,865.81 × 1,137.16
  4. Step 4: Simplify right side
    3,911.08x = 6,670,364.50
  5. Step 5: Solve for x
    x = 6,670,364.50/3,911.08
  6. Step 6: Final answer
    x = 1,705.50

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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.