Home / 3,938.48-5,908.60-1,630

Finding the Fourth Proportional to 3,938.48, 5,908.60 and 1,630

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Solution

The fourth proportional to 3,938.48, 5,908.60 and 1,630 is: 2,445.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.48 : 5,908.60 = 1,630 : x
  2. Step 2: Convert to fraction form
    3,938.48/5,908.60 = 1,630/x
  3. Step 3: Cross multiply
    3,938.48x = 5,908.60 × 1,630
  4. Step 4: Simplify right side
    3,938.48x = 9,631,018
  5. Step 5: Solve for x
    x = 9,631,018/3,938.48
  6. Step 6: Final answer
    x = 2,445.36

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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.