Home / 4,187.40-6,275.67-1,719.30

Finding the Fourth Proportional to 4,187.40, 6,275.67 and 1,719.30

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Solution

The fourth proportional to 4,187.40, 6,275.67 and 1,719.30 is: 2,576.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.40 : 6,275.67 = 1,719.30 : x
  2. Step 2: Convert to fraction form
    4,187.40/6,275.67 = 1,719.30/x
  3. Step 3: Cross multiply
    4,187.40x = 6,275.67 × 1,719.30
  4. Step 4: Simplify right side
    4,187.40x = 10,789,759.43
  5. Step 5: Solve for x
    x = 10,789,759.43/4,187.40
  6. Step 6: Final answer
    x = 2,576.72

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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.