Home / 1,630.26-2,431.08-1,615.68

Finding the Fourth Proportional to 1,630.26, 2,431.08 and 1,615.68

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Solution

The fourth proportional to 1,630.26, 2,431.08 and 1,615.68 is: 2,409.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630.26 : 2,431.08 = 1,615.68 : x
  2. Step 2: Convert to fraction form
    1,630.26/2,431.08 = 1,615.68/x
  3. Step 3: Cross multiply
    1,630.26x = 2,431.08 × 1,615.68
  4. Step 4: Simplify right side
    1,630.26x = 3,927,847.33
  5. Step 5: Solve for x
    x = 3,927,847.33/1,630.26
  6. Step 6: Final answer
    x = 2,409.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.