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Finding the Fourth Proportional to 4,256.48, 6,383.76 and 1,520.48

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Solution

The fourth proportional to 4,256.48, 6,383.76 and 1,520.48 is: 2,280.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,256.48 : 6,383.76 = 1,520.48 : x
  2. Step 2: Convert to fraction form
    4,256.48/6,383.76 = 1,520.48/x
  3. Step 3: Cross multiply
    4,256.48x = 6,383.76 × 1,520.48
  4. Step 4: Simplify right side
    4,256.48x = 9,706,379.40
  5. Step 5: Solve for x
    x = 9,706,379.40/4,256.48
  6. Step 6: Final answer
    x = 2,280.38

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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.