Home / 7,351.40-11,031.44-2,909.50

Finding the Fourth Proportional to 7,351.40, 11,031.44 and 2,909.50

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Solution

The fourth proportional to 7,351.40, 11,031.44 and 2,909.50 is: 4,365.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,351.40 : 11,031.44 = 2,909.50 : x
  2. Step 2: Convert to fraction form
    7,351.40/11,031.44 = 2,909.50/x
  3. Step 3: Cross multiply
    7,351.40x = 11,031.44 × 2,909.50
  4. Step 4: Simplify right side
    7,351.40x = 32,095,974.68
  5. Step 5: Solve for x
    x = 32,095,974.68/7,351.40
  6. Step 6: Final answer
    x = 4,365.97

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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.