Home / 4,211.37-6,317.04-2,128.50

Finding the Fourth Proportional to 4,211.37, 6,317.04 and 2,128.50

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Solution

The fourth proportional to 4,211.37, 6,317.04 and 2,128.50 is: 3,192.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,211.37 : 6,317.04 = 2,128.50 : x
  2. Step 2: Convert to fraction form
    4,211.37/6,317.04 = 2,128.50/x
  3. Step 3: Cross multiply
    4,211.37x = 6,317.04 × 2,128.50
  4. Step 4: Simplify right side
    4,211.37x = 13,445,833.42
  5. Step 5: Solve for x
    x = 13,445,833.42/4,211.37
  6. Step 6: Final answer
    x = 3,192.75

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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.