Home / 2,895.78-3,996.15-1,569.48

Finding the Fourth Proportional to 2,895.78, 3,996.15 and 1,569.48

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Solution

The fourth proportional to 2,895.78, 3,996.15 and 1,569.48 is: 2,165.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,895.78 : 3,996.15 = 1,569.48 : x
  2. Step 2: Convert to fraction form
    2,895.78/3,996.15 = 1,569.48/x
  3. Step 3: Cross multiply
    2,895.78x = 3,996.15 × 1,569.48
  4. Step 4: Simplify right side
    2,895.78x = 6,271,869.65
  5. Step 5: Solve for x
    x = 6,271,869.65/2,895.78
  6. Step 6: Final answer
    x = 2,165.87

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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.