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Finding the Fourth Proportional to 4,452.48, 6,678.48 and 1,985.76

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Solution

The fourth proportional to 4,452.48, 6,678.48 and 1,985.76 is: 2,978.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,452.48 : 6,678.48 = 1,985.76 : x
  2. Step 2: Convert to fraction form
    4,452.48/6,678.48 = 1,985.76/x
  3. Step 3: Cross multiply
    4,452.48x = 6,678.48 × 1,985.76
  4. Step 4: Simplify right side
    4,452.48x = 13,261,858.44
  5. Step 5: Solve for x
    x = 13,261,858.44/4,452.48
  6. Step 6: Final answer
    x = 2,978.53

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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.