Home / 5,103.90-7,042.95-2,865.60

Finding the Fourth Proportional to 5,103.90, 7,042.95 and 2,865.60

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Solution

The fourth proportional to 5,103.90, 7,042.95 and 2,865.60 is: 3,954.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103.90 : 7,042.95 = 2,865.60 : x
  2. Step 2: Convert to fraction form
    5,103.90/7,042.95 = 2,865.60/x
  3. Step 3: Cross multiply
    5,103.90x = 7,042.95 × 2,865.60
  4. Step 4: Simplify right side
    5,103.90x = 20,182,277.52
  5. Step 5: Solve for x
    x = 20,182,277.52/5,103.90
  6. Step 6: Final answer
    x = 3,954.29

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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.