Home / 2,665.08-3,987.90-1,569.96

Finding the Fourth Proportional to 2,665.08, 3,987.90 and 1,569.96

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Solution

The fourth proportional to 2,665.08, 3,987.90 and 1,569.96 is: 2,349.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,665.08 : 3,987.90 = 1,569.96 : x
  2. Step 2: Convert to fraction form
    2,665.08/3,987.90 = 1,569.96/x
  3. Step 3: Cross multiply
    2,665.08x = 3,987.90 × 1,569.96
  4. Step 4: Simplify right side
    2,665.08x = 6,260,843.48
  5. Step 5: Solve for x
    x = 6,260,843.48/2,665.08
  6. Step 6: Final answer
    x = 2,349.21

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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.