Home / 1,619.76-2,428.95-580.03

Finding the Fourth Proportional to 1,619.76, 2,428.95 and 580.03

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Solution

The fourth proportional to 1,619.76, 2,428.95 and 580.03 is: 869.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.76 : 2,428.95 = 580.03 : x
  2. Step 2: Convert to fraction form
    1,619.76/2,428.95 = 580.03/x
  3. Step 3: Cross multiply
    1,619.76x = 2,428.95 × 580.03
  4. Step 4: Simplify right side
    1,619.76x = 1,408,863.87
  5. Step 5: Solve for x
    x = 1,408,863.87/1,619.76
  6. Step 6: Final answer
    x = 869.80

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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.