Home / 1,912.17-2,869.08-1,045.47

Finding the Fourth Proportional to 1,912.17, 2,869.08 and 1,045.47

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Solution

The fourth proportional to 1,912.17, 2,869.08 and 1,045.47 is: 1,568.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912.17 : 2,869.08 = 1,045.47 : x
  2. Step 2: Convert to fraction form
    1,912.17/2,869.08 = 1,045.47/x
  3. Step 3: Cross multiply
    1,912.17x = 2,869.08 × 1,045.47
  4. Step 4: Simplify right side
    1,912.17x = 2,999,537.07
  5. Step 5: Solve for x
    x = 2,999,537.07/1,912.17
  6. Step 6: Final answer
    x = 1,568.66

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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.