Home / 2,057.07-2,838.81-1,172.85

Finding the Fourth Proportional to 2,057.07, 2,838.81 and 1,172.85

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Solution

The fourth proportional to 2,057.07, 2,838.81 and 1,172.85 is: 1,618.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,057.07 : 2,838.81 = 1,172.85 : x
  2. Step 2: Convert to fraction form
    2,057.07/2,838.81 = 1,172.85/x
  3. Step 3: Cross multiply
    2,057.07x = 2,838.81 × 1,172.85
  4. Step 4: Simplify right side
    2,057.07x = 3,329,508.34
  5. Step 5: Solve for x
    x = 3,329,508.34/2,057.07
  6. Step 6: Final answer
    x = 1,618.57

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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.