Home / 2,615.51-3,609.92-1,621.23

Finding the Fourth Proportional to 2,615.51, 3,609.92 and 1,621.23

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Solution

The fourth proportional to 2,615.51, 3,609.92 and 1,621.23 is: 2,237.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.51 : 3,609.92 = 1,621.23 : x
  2. Step 2: Convert to fraction form
    2,615.51/3,609.92 = 1,621.23/x
  3. Step 3: Cross multiply
    2,615.51x = 3,609.92 × 1,621.23
  4. Step 4: Simplify right side
    2,615.51x = 5,852,502.50
  5. Step 5: Solve for x
    x = 5,852,502.50/2,615.51
  6. Step 6: Final answer
    x = 2,237.61

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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.