Home / 5,211.10-7,817.54-1,924.21

Finding the Fourth Proportional to 5,211.10, 7,817.54 and 1,924.21

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Solution

The fourth proportional to 5,211.10, 7,817.54 and 1,924.21 is: 2,886.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.10 : 7,817.54 = 1,924.21 : x
  2. Step 2: Convert to fraction form
    5,211.10/7,817.54 = 1,924.21/x
  3. Step 3: Cross multiply
    5,211.10x = 7,817.54 × 1,924.21
  4. Step 4: Simplify right side
    5,211.10x = 15,042,588.64
  5. Step 5: Solve for x
    x = 15,042,588.64/5,211.10
  6. Step 6: Final answer
    x = 2,886.64

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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.