Home / 2,775.33-4,160.57-1,387.26

Finding the Fourth Proportional to 2,775.33, 4,160.57 and 1,387.26

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Solution

The fourth proportional to 2,775.33, 4,160.57 and 1,387.26 is: 2,079.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.33 : 4,160.57 = 1,387.26 : x
  2. Step 2: Convert to fraction form
    2,775.33/4,160.57 = 1,387.26/x
  3. Step 3: Cross multiply
    2,775.33x = 4,160.57 × 1,387.26
  4. Step 4: Simplify right side
    2,775.33x = 5,771,785.40
  5. Step 5: Solve for x
    x = 5,771,785.40/2,775.33
  6. Step 6: Final answer
    x = 2,079.68

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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.