Home / 3,145.49-4,711.83-1,477.08

Finding the Fourth Proportional to 3,145.49, 4,711.83 and 1,477.08

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Solution

The fourth proportional to 3,145.49, 4,711.83 and 1,477.08 is: 2,212.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.49 : 4,711.83 = 1,477.08 : x
  2. Step 2: Convert to fraction form
    3,145.49/4,711.83 = 1,477.08/x
  3. Step 3: Cross multiply
    3,145.49x = 4,711.83 × 1,477.08
  4. Step 4: Simplify right side
    3,145.49x = 6,959,749.86
  5. Step 5: Solve for x
    x = 6,959,749.86/3,145.49
  6. Step 6: Final answer
    x = 2,212.62

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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.