Home / 2,040.26-2,815.63-1,156.21

Finding the Fourth Proportional to 2,040.26, 2,815.63 and 1,156.21

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Solution

The fourth proportional to 2,040.26, 2,815.63 and 1,156.21 is: 1,595.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,040.26 : 2,815.63 = 1,156.21 : x
  2. Step 2: Convert to fraction form
    2,040.26/2,815.63 = 1,156.21/x
  3. Step 3: Cross multiply
    2,040.26x = 2,815.63 × 1,156.21
  4. Step 4: Simplify right side
    2,040.26x = 3,255,449.63
  5. Step 5: Solve for x
    x = 3,255,449.63/2,040.26
  6. Step 6: Final answer
    x = 1,595.61

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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.