Home / 5,241.40-7,859.70-2,318.20

Finding the Fourth Proportional to 5,241.40, 7,859.70 and 2,318.20

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Solution

The fourth proportional to 5,241.40, 7,859.70 and 2,318.20 is: 3,476.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,241.40 : 7,859.70 = 2,318.20 : x
  2. Step 2: Convert to fraction form
    5,241.40/7,859.70 = 2,318.20/x
  3. Step 3: Cross multiply
    5,241.40x = 7,859.70 × 2,318.20
  4. Step 4: Simplify right side
    5,241.40x = 18,220,356.54
  5. Step 5: Solve for x
    x = 18,220,356.54/5,241.40
  6. Step 6: Final answer
    x = 3,476.24

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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.