Home / 2,615.21-3,609.01-1,436.30

Finding the Fourth Proportional to 2,615.21, 3,609.01 and 1,436.30

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Solution

The fourth proportional to 2,615.21, 3,609.01 and 1,436.30 is: 1,982.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.21 : 3,609.01 = 1,436.30 : x
  2. Step 2: Convert to fraction form
    2,615.21/3,609.01 = 1,436.30/x
  3. Step 3: Cross multiply
    2,615.21x = 3,609.01 × 1,436.30
  4. Step 4: Simplify right side
    2,615.21x = 5,183,612.96
  5. Step 5: Solve for x
    x = 5,183,612.96/2,615.21
  6. Step 6: Final answer
    x = 1,982.11

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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.