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Finding the Fourth Proportional to 3,457.62, 5,187.95 and 1,813.77

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Solution

The fourth proportional to 3,457.62, 5,187.95 and 1,813.77 is: 2,721.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.62 : 5,187.95 = 1,813.77 : x
  2. Step 2: Convert to fraction form
    3,457.62/5,187.95 = 1,813.77/x
  3. Step 3: Cross multiply
    3,457.62x = 5,187.95 × 1,813.77
  4. Step 4: Simplify right side
    3,457.62x = 9,409,752.61
  5. Step 5: Solve for x
    x = 9,409,752.61/3,457.62
  6. Step 6: Final answer
    x = 2,721.45

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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.