Home / 2,715.23-4,074.80-1,155.66

Finding the Fourth Proportional to 2,715.23, 4,074.80 and 1,155.66

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Solution

The fourth proportional to 2,715.23, 4,074.80 and 1,155.66 is: 1,734.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.23 : 4,074.80 = 1,155.66 : x
  2. Step 2: Convert to fraction form
    2,715.23/4,074.80 = 1,155.66/x
  3. Step 3: Cross multiply
    2,715.23x = 4,074.80 × 1,155.66
  4. Step 4: Simplify right side
    2,715.23x = 4,709,083.37
  5. Step 5: Solve for x
    x = 4,709,083.37/2,715.23
  6. Step 6: Final answer
    x = 1,734.32

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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.