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Finding the Fourth Proportional to 7,158.79, 10,736.94 and 1,893.86

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Solution

The fourth proportional to 7,158.79, 10,736.94 and 1,893.86 is: 2,840.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,158.79 : 10,736.94 = 1,893.86 : x
  2. Step 2: Convert to fraction form
    7,158.79/10,736.94 = 1,893.86/x
  3. Step 3: Cross multiply
    7,158.79x = 10,736.94 × 1,893.86
  4. Step 4: Simplify right side
    7,158.79x = 20,334,207.50
  5. Step 5: Solve for x
    x = 20,334,207.50/7,158.79
  6. Step 6: Final answer
    x = 2,840.45

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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.