Home / 4,211.60-6,318.61-1,290.33

Finding the Fourth Proportional to 4,211.60, 6,318.61 and 1,290.33

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Solution

The fourth proportional to 4,211.60, 6,318.61 and 1,290.33 is: 1,935.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,211.60 : 6,318.61 = 1,290.33 : x
  2. Step 2: Convert to fraction form
    4,211.60/6,318.61 = 1,290.33/x
  3. Step 3: Cross multiply
    4,211.60x = 6,318.61 × 1,290.33
  4. Step 4: Simplify right side
    4,211.60x = 8,153,088.82
  5. Step 5: Solve for x
    x = 8,153,088.82/4,211.60
  6. Step 6: Final answer
    x = 1,935.87

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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.