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Finding the Fourth Proportional to 7,340.95, 11,015.21 and 3,643.10

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Solution

The fourth proportional to 7,340.95, 11,015.21 and 3,643.10 is: 5,466.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,340.95 : 11,015.21 = 3,643.10 : x
  2. Step 2: Convert to fraction form
    7,340.95/11,015.21 = 3,643.10/x
  3. Step 3: Cross multiply
    7,340.95x = 11,015.21 × 3,643.10
  4. Step 4: Simplify right side
    7,340.95x = 40,129,511.55
  5. Step 5: Solve for x
    x = 40,129,511.55/7,340.95
  6. Step 6: Final answer
    x = 5,466.53

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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.