Home / 1,812.56-2,719.26-580.04

Finding the Fourth Proportional to 1,812.56, 2,719.26 and 580.04

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Solution

The fourth proportional to 1,812.56, 2,719.26 and 580.04 is: 870.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.56 : 2,719.26 = 580.04 : x
  2. Step 2: Convert to fraction form
    1,812.56/2,719.26 = 580.04/x
  3. Step 3: Cross multiply
    1,812.56x = 2,719.26 × 580.04
  4. Step 4: Simplify right side
    1,812.56x = 1,577,279.57
  5. Step 5: Solve for x
    x = 1,577,279.57/1,812.56
  6. Step 6: Final answer
    x = 870.19

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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.