Home / 4,248.48-6,372.78-1,128.54

Finding the Fourth Proportional to 4,248.48, 6,372.78 and 1,128.54

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Solution

The fourth proportional to 4,248.48, 6,372.78 and 1,128.54 is: 1,692.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,248.48 : 6,372.78 = 1,128.54 : x
  2. Step 2: Convert to fraction form
    4,248.48/6,372.78 = 1,128.54/x
  3. Step 3: Cross multiply
    4,248.48x = 6,372.78 × 1,128.54
  4. Step 4: Simplify right side
    4,248.48x = 7,191,937.14
  5. Step 5: Solve for x
    x = 7,191,937.14/4,248.48
  6. Step 6: Final answer
    x = 1,692.83

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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.