Home / 4,211.12-6,316.98-1,289.04

Finding the Fourth Proportional to 4,211.12, 6,316.98 and 1,289.04

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Solution

The fourth proportional to 4,211.12, 6,316.98 and 1,289.04 is: 1,933.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,211.12 : 6,316.98 = 1,289.04 : x
  2. Step 2: Convert to fraction form
    4,211.12/6,316.98 = 1,289.04/x
  3. Step 3: Cross multiply
    4,211.12x = 6,316.98 × 1,289.04
  4. Step 4: Simplify right side
    4,211.12x = 8,142,839.90
  5. Step 5: Solve for x
    x = 8,142,839.90/4,211.12
  6. Step 6: Final answer
    x = 1,933.65

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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.