Home / 1,812.58-2,719.10-580.37

Finding the Fourth Proportional to 1,812.58, 2,719.10 and 580.37

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Solution

The fourth proportional to 1,812.58, 2,719.10 and 580.37 is: 870.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.58 : 2,719.10 = 580.37 : x
  2. Step 2: Convert to fraction form
    1,812.58/2,719.10 = 580.37/x
  3. Step 3: Cross multiply
    1,812.58x = 2,719.10 × 580.37
  4. Step 4: Simplify right side
    1,812.58x = 1,578,071.92
  5. Step 5: Solve for x
    x = 1,578,071.92/1,812.58
  6. Step 6: Final answer
    x = 870.62

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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.