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Finding the Fourth Proportional to 5,615.58, 7,747.98 and 3,625.40

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Solution

The fourth proportional to 5,615.58, 7,747.98 and 3,625.40 is: 5,002.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.58 : 7,747.98 = 3,625.40 : x
  2. Step 2: Convert to fraction form
    5,615.58/7,747.98 = 3,625.40/x
  3. Step 3: Cross multiply
    5,615.58x = 7,747.98 × 3,625.40
  4. Step 4: Simplify right side
    5,615.58x = 28,089,526.69
  5. Step 5: Solve for x
    x = 28,089,526.69/5,615.58
  6. Step 6: Final answer
    x = 5,002.07

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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.