Home / 3,178.16-4,763.32-1,228.76

Finding the Fourth Proportional to 3,178.16, 4,763.32 and 1,228.76

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Solution

The fourth proportional to 3,178.16, 4,763.32 and 1,228.76 is: 1,841.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.16 : 4,763.32 = 1,228.76 : x
  2. Step 2: Convert to fraction form
    3,178.16/4,763.32 = 1,228.76/x
  3. Step 3: Cross multiply
    3,178.16x = 4,763.32 × 1,228.76
  4. Step 4: Simplify right side
    3,178.16x = 5,852,977.08
  5. Step 5: Solve for x
    x = 5,852,977.08/3,178.16
  6. Step 6: Final answer
    x = 1,841.62

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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.