Home / 5,243.40-7,858.62-3,156.84

Finding the Fourth Proportional to 5,243.40, 7,858.62 and 3,156.84

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Solution

The fourth proportional to 5,243.40, 7,858.62 and 3,156.84 is: 4,731.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.40 : 7,858.62 = 3,156.84 : x
  2. Step 2: Convert to fraction form
    5,243.40/7,858.62 = 3,156.84/x
  3. Step 3: Cross multiply
    5,243.40x = 7,858.62 × 3,156.84
  4. Step 4: Simplify right side
    5,243.40x = 24,808,405.96
  5. Step 5: Solve for x
    x = 24,808,405.96/5,243.40
  6. Step 6: Final answer
    x = 4,731.36

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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.