Home / 1,829.28-2,521.68-1,386.38

Finding the Fourth Proportional to 1,829.28, 2,521.68 and 1,386.38

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Solution

The fourth proportional to 1,829.28, 2,521.68 and 1,386.38 is: 1,911.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,829.28 : 2,521.68 = 1,386.38 : x
  2. Step 2: Convert to fraction form
    1,829.28/2,521.68 = 1,386.38/x
  3. Step 3: Cross multiply
    1,829.28x = 2,521.68 × 1,386.38
  4. Step 4: Simplify right side
    1,829.28x = 3,496,006.72
  5. Step 5: Solve for x
    x = 3,496,006.72/1,829.28
  6. Step 6: Final answer
    x = 1,911.14

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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.