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Finding the Fourth Proportional to 2,068.77, 3,103.11 and 972.53

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Solution

The fourth proportional to 2,068.77, 3,103.11 and 972.53 is: 1,458.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,068.77 : 3,103.11 = 972.53 : x
  2. Step 2: Convert to fraction form
    2,068.77/3,103.11 = 972.53/x
  3. Step 3: Cross multiply
    2,068.77x = 3,103.11 × 972.53
  4. Step 4: Simplify right side
    2,068.77x = 3,017,852.05
  5. Step 5: Solve for x
    x = 3,017,852.05/2,068.77
  6. Step 6: Final answer
    x = 1,458.77

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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.