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Finding the Fourth Proportional to 5,289.55, 7,291.11 and 4,168.63

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Solution

The fourth proportional to 5,289.55, 7,291.11 and 4,168.63 is: 5,746.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.55 : 7,291.11 = 4,168.63 : x
  2. Step 2: Convert to fraction form
    5,289.55/7,291.11 = 4,168.63/x
  3. Step 3: Cross multiply
    5,289.55x = 7,291.11 × 4,168.63
  4. Step 4: Simplify right side
    5,289.55x = 30,393,939.88
  5. Step 5: Solve for x
    x = 30,393,939.88/5,289.55
  6. Step 6: Final answer
    x = 5,746.04

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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.