Home / 4,211.39-6,316.85-1,289.69

Finding the Fourth Proportional to 4,211.39, 6,316.85 and 1,289.69

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Solution

The fourth proportional to 4,211.39, 6,316.85 and 1,289.69 is: 1,934.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,211.39 : 6,316.85 = 1,289.69 : x
  2. Step 2: Convert to fraction form
    4,211.39/6,316.85 = 1,289.69/x
  3. Step 3: Cross multiply
    4,211.39x = 6,316.85 × 1,289.69
  4. Step 4: Simplify right side
    4,211.39x = 8,146,740.24
  5. Step 5: Solve for x
    x = 8,146,740.24/4,211.39
  6. Step 6: Final answer
    x = 1,934.46

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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.