Home / 2,547.90-3,516.41-1,553.11

Finding the Fourth Proportional to 2,547.90, 3,516.41 and 1,553.11

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Solution

The fourth proportional to 2,547.90, 3,516.41 and 1,553.11 is: 2,143.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,547.90 : 3,516.41 = 1,553.11 : x
  2. Step 2: Convert to fraction form
    2,547.90/3,516.41 = 1,553.11/x
  3. Step 3: Cross multiply
    2,547.90x = 3,516.41 × 1,553.11
  4. Step 4: Simplify right side
    2,547.90x = 5,461,371.54
  5. Step 5: Solve for x
    x = 5,461,371.54/2,547.90
  6. Step 6: Final answer
    x = 2,143.48

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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.