Home / 4,211.38-6,316.65-1,289.71

Finding the Fourth Proportional to 4,211.38, 6,316.65 and 1,289.71

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Solution

The fourth proportional to 4,211.38, 6,316.65 and 1,289.71 is: 1,934.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,211.38 : 6,316.65 = 1,289.71 : x
  2. Step 2: Convert to fraction form
    4,211.38/6,316.65 = 1,289.71/x
  3. Step 3: Cross multiply
    4,211.38x = 6,316.65 × 1,289.71
  4. Step 4: Simplify right side
    4,211.38x = 8,146,646.67
  5. Step 5: Solve for x
    x = 8,146,646.67/4,211.38
  6. Step 6: Final answer
    x = 1,934.44

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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.