Home / 1,511.88-2,265.90-1,316.06

Finding the Fourth Proportional to 1,511.88, 2,265.90 and 1,316.06

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Solution

The fourth proportional to 1,511.88, 2,265.90 and 1,316.06 is: 1,972.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.88 : 2,265.90 = 1,316.06 : x
  2. Step 2: Convert to fraction form
    1,511.88/2,265.90 = 1,316.06/x
  3. Step 3: Cross multiply
    1,511.88x = 2,265.90 × 1,316.06
  4. Step 4: Simplify right side
    1,511.88x = 2,982,061.08
  5. Step 5: Solve for x
    x = 2,982,061.08/1,511.88
  6. Step 6: Final answer
    x = 1,972.42

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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.