Home / 2,764.36-3,813.78-1,716.76

Finding the Fourth Proportional to 2,764.36, 3,813.78 and 1,716.76

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Solution

The fourth proportional to 2,764.36, 3,813.78 and 1,716.76 is: 2,368.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.36 : 3,813.78 = 1,716.76 : x
  2. Step 2: Convert to fraction form
    2,764.36/3,813.78 = 1,716.76/x
  3. Step 3: Cross multiply
    2,764.36x = 3,813.78 × 1,716.76
  4. Step 4: Simplify right side
    2,764.36x = 6,547,344.95
  5. Step 5: Solve for x
    x = 6,547,344.95/2,764.36
  6. Step 6: Final answer
    x = 2,368.48

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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.