Home / 1,580.84-2,371.31-1,271.22

Finding the Fourth Proportional to 1,580.84, 2,371.31 and 1,271.22

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Solution

The fourth proportional to 1,580.84, 2,371.31 and 1,271.22 is: 1,906.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,580.84 : 2,371.31 = 1,271.22 : x
  2. Step 2: Convert to fraction form
    1,580.84/2,371.31 = 1,271.22/x
  3. Step 3: Cross multiply
    1,580.84x = 2,371.31 × 1,271.22
  4. Step 4: Simplify right side
    1,580.84x = 3,014,444.41
  5. Step 5: Solve for x
    x = 3,014,444.41/1,580.84
  6. Step 6: Final answer
    x = 1,906.86

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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.