Home / 3,728.28-5,144.90-2,403.32

Finding the Fourth Proportional to 3,728.28, 5,144.90 and 2,403.32

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Solution

The fourth proportional to 3,728.28, 5,144.90 and 2,403.32 is: 3,316.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,728.28 : 5,144.90 = 2,403.32 : x
  2. Step 2: Convert to fraction form
    3,728.28/5,144.90 = 2,403.32/x
  3. Step 3: Cross multiply
    3,728.28x = 5,144.90 × 2,403.32
  4. Step 4: Simplify right side
    3,728.28x = 12,364,841.07
  5. Step 5: Solve for x
    x = 12,364,841.07/3,728.28
  6. Step 6: Final answer
    x = 3,316.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.