Home / 1,916.07-2,871.10-1,332.20

Finding the Fourth Proportional to 1,916.07, 2,871.10 and 1,332.20

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Solution

The fourth proportional to 1,916.07, 2,871.10 and 1,332.20 is: 1,996.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916.07 : 2,871.10 = 1,332.20 : x
  2. Step 2: Convert to fraction form
    1,916.07/2,871.10 = 1,332.20/x
  3. Step 3: Cross multiply
    1,916.07x = 2,871.10 × 1,332.20
  4. Step 4: Simplify right side
    1,916.07x = 3,824,879.42
  5. Step 5: Solve for x
    x = 3,824,879.42/1,916.07
  6. Step 6: Final answer
    x = 1,996.21

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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.