Home / 3,715.87-5,124.94-3,158.18

Finding the Fourth Proportional to 3,715.87, 5,124.94 and 3,158.18

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Solution

The fourth proportional to 3,715.87, 5,124.94 and 3,158.18 is: 4,355.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.87 : 5,124.94 = 3,158.18 : x
  2. Step 2: Convert to fraction form
    3,715.87/5,124.94 = 3,158.18/x
  3. Step 3: Cross multiply
    3,715.87x = 5,124.94 × 3,158.18
  4. Step 4: Simplify right side
    3,715.87x = 16,185,467.22
  5. Step 5: Solve for x
    x = 16,185,467.22/3,715.87
  6. Step 6: Final answer
    x = 4,355.77

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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.