Home / 5,148.49-7,104.92-2,790.63

Finding the Fourth Proportional to 5,148.49, 7,104.92 and 2,790.63

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Solution

The fourth proportional to 5,148.49, 7,104.92 and 2,790.63 is: 3,851.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.49 : 7,104.92 = 2,790.63 : x
  2. Step 2: Convert to fraction form
    5,148.49/7,104.92 = 2,790.63/x
  3. Step 3: Cross multiply
    5,148.49x = 7,104.92 × 2,790.63
  4. Step 4: Simplify right side
    5,148.49x = 19,827,188.95
  5. Step 5: Solve for x
    x = 19,827,188.95/5,148.49
  6. Step 6: Final answer
    x = 3,851.07

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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.