Home / 5,758.63-8,648.34-2,987.21

Finding the Fourth Proportional to 5,758.63, 8,648.34 and 2,987.21

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Solution

The fourth proportional to 5,758.63, 8,648.34 and 2,987.21 is: 4,486.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,758.63 : 8,648.34 = 2,987.21 : x
  2. Step 2: Convert to fraction form
    5,758.63/8,648.34 = 2,987.21/x
  3. Step 3: Cross multiply
    5,758.63x = 8,648.34 × 2,987.21
  4. Step 4: Simplify right side
    5,758.63x = 25,834,418.15
  5. Step 5: Solve for x
    x = 25,834,418.15/5,758.63
  6. Step 6: Final answer
    x = 4,486.21

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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.