Home / 3,450.87-5,176.31-1,259.10

Finding the Fourth Proportional to 3,450.87, 5,176.31 and 1,259.10

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Solution

The fourth proportional to 3,450.87, 5,176.31 and 1,259.10 is: 1,888.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,450.87 : 5,176.31 = 1,259.10 : x
  2. Step 2: Convert to fraction form
    3,450.87/5,176.31 = 1,259.10/x
  3. Step 3: Cross multiply
    3,450.87x = 5,176.31 × 1,259.10
  4. Step 4: Simplify right side
    3,450.87x = 6,517,485.63
  5. Step 5: Solve for x
    x = 6,517,485.63/3,450.87
  6. Step 6: Final answer
    x = 1,888.65

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Double scale
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Similar ratio
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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.