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Finding the Fourth Proportional to 4,687.85, 7,032.99 and 1,400.94

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Solution

The fourth proportional to 4,687.85, 7,032.99 and 1,400.94 is: 2,101.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,687.85 : 7,032.99 = 1,400.94 : x
  2. Step 2: Convert to fraction form
    4,687.85/7,032.99 = 1,400.94/x
  3. Step 3: Cross multiply
    4,687.85x = 7,032.99 × 1,400.94
  4. Step 4: Simplify right side
    4,687.85x = 9,852,797.01
  5. Step 5: Solve for x
    x = 9,852,797.01/4,687.85
  6. Step 6: Final answer
    x = 2,101.77

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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.