Home / 3,564.80-4,919.28-2,072.76

Finding the Fourth Proportional to 3,564.80, 4,919.28 and 2,072.76

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Solution

The fourth proportional to 3,564.80, 4,919.28 and 2,072.76 is: 2,860.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,564.80 : 4,919.28 = 2,072.76 : x
  2. Step 2: Convert to fraction form
    3,564.80/4,919.28 = 2,072.76/x
  3. Step 3: Cross multiply
    3,564.80x = 4,919.28 × 2,072.76
  4. Step 4: Simplify right side
    3,564.80x = 10,196,486.81
  5. Step 5: Solve for x
    x = 10,196,486.81/3,564.80
  6. Step 6: Final answer
    x = 2,860.33

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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.