Home / 2,612.88-3,918.51-1,225.35

Finding the Fourth Proportional to 2,612.88, 3,918.51 and 1,225.35

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Solution

The fourth proportional to 2,612.88, 3,918.51 and 1,225.35 is: 1,837.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612.88 : 3,918.51 = 1,225.35 : x
  2. Step 2: Convert to fraction form
    2,612.88/3,918.51 = 1,225.35/x
  3. Step 3: Cross multiply
    2,612.88x = 3,918.51 × 1,225.35
  4. Step 4: Simplify right side
    2,612.88x = 4,801,546.23
  5. Step 5: Solve for x
    x = 4,801,546.23/2,612.88
  6. Step 6: Final answer
    x = 1,837.65

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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.