Home / 1,719.90-2,580.42-550.08

Finding the Fourth Proportional to 1,719.90, 2,580.42 and 550.08

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Solution

The fourth proportional to 1,719.90, 2,580.42 and 550.08 is: 825.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.90 : 2,580.42 = 550.08 : x
  2. Step 2: Convert to fraction form
    1,719.90/2,580.42 = 550.08/x
  3. Step 3: Cross multiply
    1,719.90x = 2,580.42 × 550.08
  4. Step 4: Simplify right side
    1,719.90x = 1,419,437.43
  5. Step 5: Solve for x
    x = 1,419,437.43/1,719.90
  6. Step 6: Final answer
    x = 825.30

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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.