Home / 4,213.71-6,320.41-1,291.94

Finding the Fourth Proportional to 4,213.71, 6,320.41 and 1,291.94

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Solution

The fourth proportional to 4,213.71, 6,320.41 and 1,291.94 is: 1,937.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,213.71 : 6,320.41 = 1,291.94 : x
  2. Step 2: Convert to fraction form
    4,213.71/6,320.41 = 1,291.94/x
  3. Step 3: Cross multiply
    4,213.71x = 6,320.41 × 1,291.94
  4. Step 4: Simplify right side
    4,213.71x = 8,165,590.50
  5. Step 5: Solve for x
    x = 8,165,590.50/4,213.71
  6. Step 6: Final answer
    x = 1,937.86

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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.