Home / 1,723.87-2,378.19-1,325.62

Finding the Fourth Proportional to 1,723.87, 2,378.19 and 1,325.62

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Solution

The fourth proportional to 1,723.87, 2,378.19 and 1,325.62 is: 1,828.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,723.87 : 2,378.19 = 1,325.62 : x
  2. Step 2: Convert to fraction form
    1,723.87/2,378.19 = 1,325.62/x
  3. Step 3: Cross multiply
    1,723.87x = 2,378.19 × 1,325.62
  4. Step 4: Simplify right side
    1,723.87x = 3,152,576.23
  5. Step 5: Solve for x
    x = 3,152,576.23/1,723.87
  6. Step 6: Final answer
    x = 1,828.78

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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.