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Finding the Fourth Proportional to 6,290.95, 9,436.45 and 1,908.45

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Solution

The fourth proportional to 6,290.95, 9,436.45 and 1,908.45 is: 2,862.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,290.95 : 9,436.45 = 1,908.45 : x
  2. Step 2: Convert to fraction form
    6,290.95/9,436.45 = 1,908.45/x
  3. Step 3: Cross multiply
    6,290.95x = 9,436.45 × 1,908.45
  4. Step 4: Simplify right side
    6,290.95x = 18,008,941.05
  5. Step 5: Solve for x
    x = 18,008,941.05/6,290.95
  6. Step 6: Final answer
    x = 2,862.67

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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.