Home / 5,211.54-7,814.61-2,740.23

Finding the Fourth Proportional to 5,211.54, 7,814.61 and 2,740.23

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Solution

The fourth proportional to 5,211.54, 7,814.61 and 2,740.23 is: 4,108.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.54 : 7,814.61 = 2,740.23 : x
  2. Step 2: Convert to fraction form
    5,211.54/7,814.61 = 2,740.23/x
  3. Step 3: Cross multiply
    5,211.54x = 7,814.61 × 2,740.23
  4. Step 4: Simplify right side
    5,211.54x = 21,413,828.76
  5. Step 5: Solve for x
    x = 21,413,828.76/5,211.54
  6. Step 6: Final answer
    x = 4,108.93

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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.