Home / 5,155.63-7,715.92-3,182.51

Finding the Fourth Proportional to 5,155.63, 7,715.92 and 3,182.51

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Solution

The fourth proportional to 5,155.63, 7,715.92 and 3,182.51 is: 4,762.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.63 : 7,715.92 = 3,182.51 : x
  2. Step 2: Convert to fraction form
    5,155.63/7,715.92 = 3,182.51/x
  3. Step 3: Cross multiply
    5,155.63x = 7,715.92 × 3,182.51
  4. Step 4: Simplify right side
    5,155.63x = 24,555,992.56
  5. Step 5: Solve for x
    x = 24,555,992.56/5,155.63
  6. Step 6: Final answer
    x = 4,762.95

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1.5x scale

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.