Home / 3,211.08-4,807.72-1,647.72

Finding the Fourth Proportional to 3,211.08, 4,807.72 and 1,647.72

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Solution

The fourth proportional to 3,211.08, 4,807.72 and 1,647.72 is: 2,467.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.08 : 4,807.72 = 1,647.72 : x
  2. Step 2: Convert to fraction form
    3,211.08/4,807.72 = 1,647.72/x
  3. Step 3: Cross multiply
    3,211.08x = 4,807.72 × 1,647.72
  4. Step 4: Simplify right side
    3,211.08x = 7,921,776.40
  5. Step 5: Solve for x
    x = 7,921,776.40/3,211.08
  6. Step 6: Final answer
    x = 2,467.01

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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.