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Finding the Fourth Proportional to 7,120.17, 10,670.94 and 3,826.17

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Solution

The fourth proportional to 7,120.17, 10,670.94 and 3,826.17 is: 5,734.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.17 : 10,670.94 = 3,826.17 : x
  2. Step 2: Convert to fraction form
    7,120.17/10,670.94 = 3,826.17/x
  3. Step 3: Cross multiply
    7,120.17x = 10,670.94 × 3,826.17
  4. Step 4: Simplify right side
    7,120.17x = 40,828,830.50
  5. Step 5: Solve for x
    x = 40,828,830.50/7,120.17
  6. Step 6: Final answer
    x = 5,734.25

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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.