Home / 5,213.71-7,194.87-2,855.86

Finding the Fourth Proportional to 5,213.71, 7,194.87 and 2,855.86

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Solution

The fourth proportional to 5,213.71, 7,194.87 and 2,855.86 is: 3,941.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.71 : 7,194.87 = 2,855.86 : x
  2. Step 2: Convert to fraction form
    5,213.71/7,194.87 = 2,855.86/x
  3. Step 3: Cross multiply
    5,213.71x = 7,194.87 × 2,855.86
  4. Step 4: Simplify right side
    5,213.71x = 20,547,541.44
  5. Step 5: Solve for x
    x = 20,547,541.44/5,213.71
  6. Step 6: Final answer
    x = 3,941.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.