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Finding the Fourth Proportional to 3,905.71, 5,858.58 and 1,597.21

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Solution

The fourth proportional to 3,905.71, 5,858.58 and 1,597.21 is: 2,395.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.71 : 5,858.58 = 1,597.21 : x
  2. Step 2: Convert to fraction form
    3,905.71/5,858.58 = 1,597.21/x
  3. Step 3: Cross multiply
    3,905.71x = 5,858.58 × 1,597.21
  4. Step 4: Simplify right side
    3,905.71x = 9,357,373.90
  5. Step 5: Solve for x
    x = 9,357,373.90/3,905.71
  6. Step 6: Final answer
    x = 2,395.82

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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.