Home / 1,511.53-2,083.69-1,061.98

Finding the Fourth Proportional to 1,511.53, 2,083.69 and 1,061.98

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Solution

The fourth proportional to 1,511.53, 2,083.69 and 1,061.98 is: 1,463.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.53 : 2,083.69 = 1,061.98 : x
  2. Step 2: Convert to fraction form
    1,511.53/2,083.69 = 1,061.98/x
  3. Step 3: Cross multiply
    1,511.53x = 2,083.69 × 1,061.98
  4. Step 4: Simplify right side
    1,511.53x = 2,212,837.11
  5. Step 5: Solve for x
    x = 2,212,837.11/1,511.53
  6. Step 6: Final answer
    x = 1,463.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.