Home / 5,148.54-7,104.96-2,790.68

Finding the Fourth Proportional to 5,148.54, 7,104.96 and 2,790.68

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Solution

The fourth proportional to 5,148.54, 7,104.96 and 2,790.68 is: 3,851.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.54 : 7,104.96 = 2,790.68 : x
  2. Step 2: Convert to fraction form
    5,148.54/7,104.96 = 2,790.68/x
  3. Step 3: Cross multiply
    5,148.54x = 7,104.96 × 2,790.68
  4. Step 4: Simplify right side
    5,148.54x = 19,827,634.25
  5. Step 5: Solve for x
    x = 19,827,634.25/5,148.54
  6. Step 6: Final answer
    x = 3,851.12

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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.