Home / 5,269.70-7,271.90-2,911.69

Finding the Fourth Proportional to 5,269.70, 7,271.90 and 2,911.69

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Solution

The fourth proportional to 5,269.70, 7,271.90 and 2,911.69 is: 4,017.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,269.70 : 7,271.90 = 2,911.69 : x
  2. Step 2: Convert to fraction form
    5,269.70/7,271.90 = 2,911.69/x
  3. Step 3: Cross multiply
    5,269.70x = 7,271.90 × 2,911.69
  4. Step 4: Simplify right side
    5,269.70x = 21,173,518.51
  5. Step 5: Solve for x
    x = 21,173,518.51/5,269.70
  6. Step 6: Final answer
    x = 4,017.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.