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Finding the Fourth Proportional to 2,509.35, 3,763.26 and 948.21

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Solution

The fourth proportional to 2,509.35, 3,763.26 and 948.21 is: 1,422.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,509.35 : 3,763.26 = 948.21 : x
  2. Step 2: Convert to fraction form
    2,509.35/3,763.26 = 948.21/x
  3. Step 3: Cross multiply
    2,509.35x = 3,763.26 × 948.21
  4. Step 4: Simplify right side
    2,509.35x = 3,568,360.76
  5. Step 5: Solve for x
    x = 3,568,360.76/2,509.35
  6. Step 6: Final answer
    x = 1,422.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.