Home / 2,615.29-3,609.07-1,553.57

Finding the Fourth Proportional to 2,615.29, 3,609.07 and 1,553.57

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Solution

The fourth proportional to 2,615.29, 3,609.07 and 1,553.57 is: 2,143.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.29 : 3,609.07 = 1,553.57 : x
  2. Step 2: Convert to fraction form
    2,615.29/3,609.07 = 1,553.57/x
  3. Step 3: Cross multiply
    2,615.29x = 3,609.07 × 1,553.57
  4. Step 4: Simplify right side
    2,615.29x = 5,606,953.84
  5. Step 5: Solve for x
    x = 5,606,953.84/2,615.29
  6. Step 6: Final answer
    x = 2,143.91

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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.