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Finding the Fourth Proportional to 7,155.95, 10,733.39 and 3,643.76

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Solution

The fourth proportional to 7,155.95, 10,733.39 and 3,643.76 is: 5,465.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,155.95 : 10,733.39 = 3,643.76 : x
  2. Step 2: Convert to fraction form
    7,155.95/10,733.39 = 3,643.76/x
  3. Step 3: Cross multiply
    7,155.95x = 10,733.39 × 3,643.76
  4. Step 4: Simplify right side
    7,155.95x = 39,109,905.76
  5. Step 5: Solve for x
    x = 39,109,905.76/7,155.95
  6. Step 6: Final answer
    x = 5,465.37

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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.