Home / 2,715.19-4,074.39-1,155.51

Finding the Fourth Proportional to 2,715.19, 4,074.39 and 1,155.51

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Solution

The fourth proportional to 2,715.19, 4,074.39 and 1,155.51 is: 1,733.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.19 : 4,074.39 = 1,155.51 : x
  2. Step 2: Convert to fraction form
    2,715.19/4,074.39 = 1,155.51/x
  3. Step 3: Cross multiply
    2,715.19x = 4,074.39 × 1,155.51
  4. Step 4: Simplify right side
    2,715.19x = 4,708,005.69
  5. Step 5: Solve for x
    x = 4,708,005.69/2,715.19
  6. Step 6: Final answer
    x = 1,733.95

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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.