Home / 2,140.49-2,953.70-1,196.21

Finding the Fourth Proportional to 2,140.49, 2,953.70 and 1,196.21

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Solution

The fourth proportional to 2,140.49, 2,953.70 and 1,196.21 is: 1,650.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140.49 : 2,953.70 = 1,196.21 : x
  2. Step 2: Convert to fraction form
    2,140.49/2,953.70 = 1,196.21/x
  3. Step 3: Cross multiply
    2,140.49x = 2,953.70 × 1,196.21
  4. Step 4: Simplify right side
    2,140.49x = 3,533,224.73
  5. Step 5: Solve for x
    x = 3,533,224.73/2,140.49
  6. Step 6: Final answer
    x = 1,650.67

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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.