Home / 2,587.48-3,879.33-1,664.08

Finding the Fourth Proportional to 2,587.48, 3,879.33 and 1,664.08

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Solution

The fourth proportional to 2,587.48, 3,879.33 and 1,664.08 is: 2,494.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587.48 : 3,879.33 = 1,664.08 : x
  2. Step 2: Convert to fraction form
    2,587.48/3,879.33 = 1,664.08/x
  3. Step 3: Cross multiply
    2,587.48x = 3,879.33 × 1,664.08
  4. Step 4: Simplify right side
    2,587.48x = 6,455,515.47
  5. Step 5: Solve for x
    x = 6,455,515.47/2,587.48
  6. Step 6: Final answer
    x = 2,494.90

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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.