Home / 5,157.09-7,734.40-2,381.10

Finding the Fourth Proportional to 5,157.09, 7,734.40 and 2,381.10

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Solution

The fourth proportional to 5,157.09, 7,734.40 and 2,381.10 is: 3,571.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.09 : 7,734.40 = 2,381.10 : x
  2. Step 2: Convert to fraction form
    5,157.09/7,734.40 = 2,381.10/x
  3. Step 3: Cross multiply
    5,157.09x = 7,734.40 × 2,381.10
  4. Step 4: Simplify right side
    5,157.09x = 18,416,329.26
  5. Step 5: Solve for x
    x = 18,416,329.26/5,157.09
  6. Step 6: Final answer
    x = 3,571.07

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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.