Home / 3,375.06-4,656.85-2,115.51

Finding the Fourth Proportional to 3,375.06, 4,656.85 and 2,115.51

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Solution

The fourth proportional to 3,375.06, 4,656.85 and 2,115.51 is: 2,918.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,375.06 : 4,656.85 = 2,115.51 : x
  2. Step 2: Convert to fraction form
    3,375.06/4,656.85 = 2,115.51/x
  3. Step 3: Cross multiply
    3,375.06x = 4,656.85 × 2,115.51
  4. Step 4: Simplify right side
    3,375.06x = 9,851,612.74
  5. Step 5: Solve for x
    x = 9,851,612.74/3,375.06
  6. Step 6: Final answer
    x = 2,918.94

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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.