Home / 5,103.90-7,643.70-2,503.80

Finding the Fourth Proportional to 5,103.90, 7,643.70 and 2,503.80

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Solution

The fourth proportional to 5,103.90, 7,643.70 and 2,503.80 is: 3,749.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103.90 : 7,643.70 = 2,503.80 : x
  2. Step 2: Convert to fraction form
    5,103.90/7,643.70 = 2,503.80/x
  3. Step 3: Cross multiply
    5,103.90x = 7,643.70 × 2,503.80
  4. Step 4: Simplify right side
    5,103.90x = 19,138,296.06
  5. Step 5: Solve for x
    x = 19,138,296.06/5,103.90
  6. Step 6: Final answer
    x = 3,749.74

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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.