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Finding the Fourth Proportional to 5,300.28, 7,951.50 and 1,790.64

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Solution

The fourth proportional to 5,300.28, 7,951.50 and 1,790.64 is: 2,686.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,300.28 : 7,951.50 = 1,790.64 : x
  2. Step 2: Convert to fraction form
    5,300.28/7,951.50 = 1,790.64/x
  3. Step 3: Cross multiply
    5,300.28x = 7,951.50 × 1,790.64
  4. Step 4: Simplify right side
    5,300.28x = 14,238,273.96
  5. Step 5: Solve for x
    x = 14,238,273.96/5,300.28
  6. Step 6: Final answer
    x = 2,686.32

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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.