Home / 4,211.04-6,316.62-1,290.12

Finding the Fourth Proportional to 4,211.04, 6,316.62 and 1,290.12

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Solution

The fourth proportional to 4,211.04, 6,316.62 and 1,290.12 is: 1,935.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,211.04 : 6,316.62 = 1,290.12 : x
  2. Step 2: Convert to fraction form
    4,211.04/6,316.62 = 1,290.12/x
  3. Step 3: Cross multiply
    4,211.04x = 6,316.62 × 1,290.12
  4. Step 4: Simplify right side
    4,211.04x = 8,149,197.79
  5. Step 5: Solve for x
    x = 8,149,197.79/4,211.04
  6. Step 6: Final answer
    x = 1,935.20

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Similar ratio
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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.