Home / 1,719.28-2,576.21-1,330.25

Finding the Fourth Proportional to 1,719.28, 2,576.21 and 1,330.25

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Solution

The fourth proportional to 1,719.28, 2,576.21 and 1,330.25 is: 1,993.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.28 : 2,576.21 = 1,330.25 : x
  2. Step 2: Convert to fraction form
    1,719.28/2,576.21 = 1,330.25/x
  3. Step 3: Cross multiply
    1,719.28x = 2,576.21 × 1,330.25
  4. Step 4: Simplify right side
    1,719.28x = 3,426,993.80
  5. Step 5: Solve for x
    x = 3,426,993.80/1,719.28
  6. Step 6: Final answer
    x = 1,993.28

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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.