Home / 5,269.32-7,271.75-2,911.48

Finding the Fourth Proportional to 5,269.32, 7,271.75 and 2,911.48

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Solution

The fourth proportional to 5,269.32, 7,271.75 and 2,911.48 is: 4,017.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,269.32 : 7,271.75 = 2,911.48 : x
  2. Step 2: Convert to fraction form
    5,269.32/7,271.75 = 2,911.48/x
  3. Step 3: Cross multiply
    5,269.32x = 7,271.75 × 2,911.48
  4. Step 4: Simplify right side
    5,269.32x = 21,171,543.79
  5. Step 5: Solve for x
    x = 21,171,543.79/5,269.32
  6. Step 6: Final answer
    x = 4,017.89

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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.