Home / 7,587.18-11,379-2,905.53

Finding the Fourth Proportional to 7,587.18, 11,379 and 2,905.53

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Solution

The fourth proportional to 7,587.18, 11,379 and 2,905.53 is: 4,357.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,587.18 : 11,379 = 2,905.53 : x
  2. Step 2: Convert to fraction form
    7,587.18/11,379 = 2,905.53/x
  3. Step 3: Cross multiply
    7,587.18x = 11,379 × 2,905.53
  4. Step 4: Simplify right side
    7,587.18x = 33,062,025.87
  5. Step 5: Solve for x
    x = 33,062,025.87/7,587.18
  6. Step 6: Final answer
    x = 4,357.62

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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.