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Finding the Fourth Proportional to 5,333.28, 7,999.76 and 1,437.92

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Solution

The fourth proportional to 5,333.28, 7,999.76 and 1,437.92 is: 2,156.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,333.28 : 7,999.76 = 1,437.92 : x
  2. Step 2: Convert to fraction form
    5,333.28/7,999.76 = 1,437.92/x
  3. Step 3: Cross multiply
    5,333.28x = 7,999.76 × 1,437.92
  4. Step 4: Simplify right side
    5,333.28x = 11,503,014.90
  5. Step 5: Solve for x
    x = 11,503,014.90/5,333.28
  6. Step 6: Final answer
    x = 2,156.84

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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.