Home / 2,140.09-2,953.38-1,195.85

Finding the Fourth Proportional to 2,140.09, 2,953.38 and 1,195.85

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Solution

The fourth proportional to 2,140.09, 2,953.38 and 1,195.85 is: 1,650.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140.09 : 2,953.38 = 1,195.85 : x
  2. Step 2: Convert to fraction form
    2,140.09/2,953.38 = 1,195.85/x
  3. Step 3: Cross multiply
    2,140.09x = 2,953.38 × 1,195.85
  4. Step 4: Simplify right side
    2,140.09x = 3,531,784.71
  5. Step 5: Solve for x
    x = 3,531,784.71/2,140.09
  6. Step 6: Final answer
    x = 1,650.30

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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.