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Finding the Fourth Proportional to 2,999.68, 4,495.86 and 1,355.80

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Solution

The fourth proportional to 2,999.68, 4,495.86 and 1,355.80 is: 2,032.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.68 : 4,495.86 = 1,355.80 : x
  2. Step 2: Convert to fraction form
    2,999.68/4,495.86 = 1,355.80/x
  3. Step 3: Cross multiply
    2,999.68x = 4,495.86 × 1,355.80
  4. Step 4: Simplify right side
    2,999.68x = 6,095,486.99
  5. Step 5: Solve for x
    x = 6,095,486.99/2,999.68
  6. Step 6: Final answer
    x = 2,032.05

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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.