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Finding the Fourth Proportional to 3,903.53, 5,857.59 and 1,440.08

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Solution

The fourth proportional to 3,903.53, 5,857.59 and 1,440.08 is: 2,160.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.53 : 5,857.59 = 1,440.08 : x
  2. Step 2: Convert to fraction form
    3,903.53/5,857.59 = 1,440.08/x
  3. Step 3: Cross multiply
    3,903.53x = 5,857.59 × 1,440.08
  4. Step 4: Simplify right side
    3,903.53x = 8,435,398.21
  5. Step 5: Solve for x
    x = 8,435,398.21/3,903.53
  6. Step 6: Final answer
    x = 2,160.97

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1.5x scale

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.