Home / 6,784.79-10,178.63-2,104.70

Finding the Fourth Proportional to 6,784.79, 10,178.63 and 2,104.70

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Solution

The fourth proportional to 6,784.79, 10,178.63 and 2,104.70 is: 3,157.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,784.79 : 10,178.63 = 2,104.70 : x
  2. Step 2: Convert to fraction form
    6,784.79/10,178.63 = 2,104.70/x
  3. Step 3: Cross multiply
    6,784.79x = 10,178.63 × 2,104.70
  4. Step 4: Simplify right side
    6,784.79x = 21,422,916.93
  5. Step 5: Solve for x
    x = 21,422,916.93/6,784.79
  6. Step 6: Final answer
    x = 3,157.49

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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.