Home / 4,212.08-6,318.12-1,290.01

Finding the Fourth Proportional to 4,212.08, 6,318.12 and 1,290.01

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Solution

The fourth proportional to 4,212.08, 6,318.12 and 1,290.01 is: 1,935.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.08 : 6,318.12 = 1,290.01 : x
  2. Step 2: Convert to fraction form
    4,212.08/6,318.12 = 1,290.01/x
  3. Step 3: Cross multiply
    4,212.08x = 6,318.12 × 1,290.01
  4. Step 4: Simplify right side
    4,212.08x = 8,150,437.98
  5. Step 5: Solve for x
    x = 8,150,437.98/4,212.08
  6. Step 6: Final answer
    x = 1,935.02

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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.