Home / 3,780.16-5,218.40-3,274.08

Finding the Fourth Proportional to 3,780.16, 5,218.40 and 3,274.08

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Solution

The fourth proportional to 3,780.16, 5,218.40 and 3,274.08 is: 4,519.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.16 : 5,218.40 = 3,274.08 : x
  2. Step 2: Convert to fraction form
    3,780.16/5,218.40 = 3,274.08/x
  3. Step 3: Cross multiply
    3,780.16x = 5,218.40 × 3,274.08
  4. Step 4: Simplify right side
    3,780.16x = 17,085,459.07
  5. Step 5: Solve for x
    x = 17,085,459.07/3,780.16
  6. Step 6: Final answer
    x = 4,519.77

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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.