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Finding the Fourth Proportional to 7,290.99, 10,933.56 and 2,609.40

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Solution

The fourth proportional to 7,290.99, 10,933.56 and 2,609.40 is: 3,913.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,290.99 : 10,933.56 = 2,609.40 : x
  2. Step 2: Convert to fraction form
    7,290.99/10,933.56 = 2,609.40/x
  3. Step 3: Cross multiply
    7,290.99x = 10,933.56 × 2,609.40
  4. Step 4: Simplify right side
    7,290.99x = 28,530,031.46
  5. Step 5: Solve for x
    x = 28,530,031.46/7,290.99
  6. Step 6: Final answer
    x = 3,913.05

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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.