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Finding the Fourth Proportional to 5,270.89, 7,903.64 and 1,759.63

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Solution

The fourth proportional to 5,270.89, 7,903.64 and 1,759.63 is: 2,638.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,270.89 : 7,903.64 = 1,759.63 : x
  2. Step 2: Convert to fraction form
    5,270.89/7,903.64 = 1,759.63/x
  3. Step 3: Cross multiply
    5,270.89x = 7,903.64 × 1,759.63
  4. Step 4: Simplify right side
    5,270.89x = 13,907,506.22
  5. Step 5: Solve for x
    x = 13,907,506.22/5,270.89
  6. Step 6: Final answer
    x = 2,638.55

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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.