Home / 1,813.34-2,719.87-580.42

Finding the Fourth Proportional to 1,813.34, 2,719.87 and 580.42

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Solution

The fourth proportional to 1,813.34, 2,719.87 and 580.42 is: 870.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,813.34 : 2,719.87 = 580.42 : x
  2. Step 2: Convert to fraction form
    1,813.34/2,719.87 = 580.42/x
  3. Step 3: Cross multiply
    1,813.34x = 2,719.87 × 580.42
  4. Step 4: Simplify right side
    1,813.34x = 1,578,658.69
  5. Step 5: Solve for x
    x = 1,578,658.69/1,813.34
  6. Step 6: Final answer
    x = 870.58

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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.