Home / 2,550.18-3,519-1,431.30

Finding the Fourth Proportional to 2,550.18, 3,519 and 1,431.30

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Solution

The fourth proportional to 2,550.18, 3,519 and 1,431.30 is: 1,975.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,550.18 : 3,519 = 1,431.30 : x
  2. Step 2: Convert to fraction form
    2,550.18/3,519 = 1,431.30/x
  3. Step 3: Cross multiply
    2,550.18x = 3,519 × 1,431.30
  4. Step 4: Simplify right side
    2,550.18x = 5,036,744.70
  5. Step 5: Solve for x
    x = 5,036,744.70/2,550.18
  6. Step 6: Final answer
    x = 1,975.05

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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.