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Finding the Fourth Proportional to 7,271.51, 10,910.90 and 2,890.22

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Solution

The fourth proportional to 7,271.51, 10,910.90 and 2,890.22 is: 4,336.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,271.51 : 10,910.90 = 2,890.22 : x
  2. Step 2: Convert to fraction form
    7,271.51/10,910.90 = 2,890.22/x
  3. Step 3: Cross multiply
    7,271.51x = 10,910.90 × 2,890.22
  4. Step 4: Simplify right side
    7,271.51x = 31,534,854.07
  5. Step 5: Solve for x
    x = 31,534,854.07/7,271.51
  6. Step 6: Final answer
    x = 4,336.77

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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.