Home / 1,580.96-2,371.80-1,119.63

Finding the Fourth Proportional to 1,580.96, 2,371.80 and 1,119.63

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Solution

The fourth proportional to 1,580.96, 2,371.80 and 1,119.63 is: 1,679.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,580.96 : 2,371.80 = 1,119.63 : x
  2. Step 2: Convert to fraction form
    1,580.96/2,371.80 = 1,119.63/x
  3. Step 3: Cross multiply
    1,580.96x = 2,371.80 × 1,119.63
  4. Step 4: Simplify right side
    1,580.96x = 2,655,538.43
  5. Step 5: Solve for x
    x = 2,655,538.43/1,580.96
  6. Step 6: Final answer
    x = 1,679.71

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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.