Home / 5,615.36-8,423.48-3,275.60

Finding the Fourth Proportional to 5,615.36, 8,423.48 and 3,275.60

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Solution

The fourth proportional to 5,615.36, 8,423.48 and 3,275.60 is: 4,913.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.36 : 8,423.48 = 3,275.60 : x
  2. Step 2: Convert to fraction form
    5,615.36/8,423.48 = 3,275.60/x
  3. Step 3: Cross multiply
    5,615.36x = 8,423.48 × 3,275.60
  4. Step 4: Simplify right side
    5,615.36x = 27,591,955.77
  5. Step 5: Solve for x
    x = 27,591,955.77/5,615.36
  6. Step 6: Final answer
    x = 4,913.66

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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.