Home / 1,721.10-2,580.68-550.83

Finding the Fourth Proportional to 1,721.10, 2,580.68 and 550.83

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Solution

The fourth proportional to 1,721.10, 2,580.68 and 550.83 is: 825.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.10 : 2,580.68 = 550.83 : x
  2. Step 2: Convert to fraction form
    1,721.10/2,580.68 = 550.83/x
  3. Step 3: Cross multiply
    1,721.10x = 2,580.68 × 550.83
  4. Step 4: Simplify right side
    1,721.10x = 1,421,515.96
  5. Step 5: Solve for x
    x = 1,421,515.96/1,721.10
  6. Step 6: Final answer
    x = 825.93

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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.