Home / 2,615.23-3,609.20-1,620.70

Finding the Fourth Proportional to 2,615.23, 3,609.20 and 1,620.70

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Solution

The fourth proportional to 2,615.23, 3,609.20 and 1,620.70 is: 2,236.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.23 : 3,609.20 = 1,620.70 : x
  2. Step 2: Convert to fraction form
    2,615.23/3,609.20 = 1,620.70/x
  3. Step 3: Cross multiply
    2,615.23x = 3,609.20 × 1,620.70
  4. Step 4: Simplify right side
    2,615.23x = 5,849,412.39
  5. Step 5: Solve for x
    x = 5,849,412.39/2,615.23
  6. Step 6: Final answer
    x = 2,236.68

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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.