Home / 2,021.26-2,782.82-1,572.58

Finding the Fourth Proportional to 2,021.26, 2,782.82 and 1,572.58

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Solution

The fourth proportional to 2,021.26, 2,782.82 and 1,572.58 is: 2,165.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.26 : 2,782.82 = 1,572.58 : x
  2. Step 2: Convert to fraction form
    2,021.26/2,782.82 = 1,572.58/x
  3. Step 3: Cross multiply
    2,021.26x = 2,782.82 × 1,572.58
  4. Step 4: Simplify right side
    2,021.26x = 4,376,214.49
  5. Step 5: Solve for x
    x = 4,376,214.49/2,021.26
  6. Step 6: Final answer
    x = 2,165.09

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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.