Home / 3,392.18-5,090-1,615.25

Finding the Fourth Proportional to 3,392.18, 5,090 and 1,615.25

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Solution

The fourth proportional to 3,392.18, 5,090 and 1,615.25 is: 2,423.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.18 : 5,090 = 1,615.25 : x
  2. Step 2: Convert to fraction form
    3,392.18/5,090 = 1,615.25/x
  3. Step 3: Cross multiply
    3,392.18x = 5,090 × 1,615.25
  4. Step 4: Simplify right side
    3,392.18x = 8,221,597.05
  5. Step 5: Solve for x
    x = 8,221,597.05/3,392.18
  6. Step 6: Final answer
    x = 2,423.69

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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.