Home / 4,749.78-6,555-2,653.92

Finding the Fourth Proportional to 4,749.78, 6,555 and 2,653.92

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Solution

The fourth proportional to 4,749.78, 6,555 and 2,653.92 is: 3,662.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,749.78 : 6,555 = 2,653.92 : x
  2. Step 2: Convert to fraction form
    4,749.78/6,555 = 2,653.92/x
  3. Step 3: Cross multiply
    4,749.78x = 6,555 × 2,653.92
  4. Step 4: Simplify right side
    4,749.78x = 17,396,445.60
  5. Step 5: Solve for x
    x = 17,396,445.60/4,749.78
  6. Step 6: Final answer
    x = 3,662.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.