Home / 1,813.05-2,715.39-1,782.95

Finding the Fourth Proportional to 1,813.05, 2,715.39 and 1,782.95

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Solution

The fourth proportional to 1,813.05, 2,715.39 and 1,782.95 is: 2,670.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,813.05 : 2,715.39 = 1,782.95 : x
  2. Step 2: Convert to fraction form
    1,813.05/2,715.39 = 1,782.95/x
  3. Step 3: Cross multiply
    1,813.05x = 2,715.39 × 1,782.95
  4. Step 4: Simplify right side
    1,813.05x = 4,841,391.02
  5. Step 5: Solve for x
    x = 4,841,391.02/1,813.05
  6. Step 6: Final answer
    x = 2,670.30

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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.