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Finding the Fourth Proportional to 3,587.99, 5,378.45 and 1,508.58

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Solution

The fourth proportional to 3,587.99, 5,378.45 and 1,508.58 is: 2,261.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,587.99 : 5,378.45 = 1,508.58 : x
  2. Step 2: Convert to fraction form
    3,587.99/5,378.45 = 1,508.58/x
  3. Step 3: Cross multiply
    3,587.99x = 5,378.45 × 1,508.58
  4. Step 4: Simplify right side
    3,587.99x = 8,113,814.56
  5. Step 5: Solve for x
    x = 8,113,814.56/3,587.99
  6. Step 6: Final answer
    x = 2,261.38

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.