Home / 3,895.20-5,376.60-3,013.20

Finding the Fourth Proportional to 3,895.20, 5,376.60 and 3,013.20

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Solution

The fourth proportional to 3,895.20, 5,376.60 and 3,013.20 is: 4,159.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.20 : 5,376.60 = 3,013.20 : x
  2. Step 2: Convert to fraction form
    3,895.20/5,376.60 = 3,013.20/x
  3. Step 3: Cross multiply
    3,895.20x = 5,376.60 × 3,013.20
  4. Step 4: Simplify right side
    3,895.20x = 16,200,771.12
  5. Step 5: Solve for x
    x = 16,200,771.12/3,895.20
  6. Step 6: Final answer
    x = 4,159.16

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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.