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Finding the Fourth Proportional to 5,247.94, 7,242.06 and 2,890.03

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Solution

The fourth proportional to 5,247.94, 7,242.06 and 2,890.03 is: 3,988.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.94 : 7,242.06 = 2,890.03 : x
  2. Step 2: Convert to fraction form
    5,247.94/7,242.06 = 2,890.03/x
  3. Step 3: Cross multiply
    5,247.94x = 7,242.06 × 2,890.03
  4. Step 4: Simplify right side
    5,247.94x = 20,929,770.66
  5. Step 5: Solve for x
    x = 20,929,770.66/5,247.94
  6. Step 6: Final answer
    x = 3,988.19

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1.5x scale

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.