Home / 4,078.20-5,626.08-2,505.72

Finding the Fourth Proportional to 4,078.20, 5,626.08 and 2,505.72

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Solution

The fourth proportional to 4,078.20, 5,626.08 and 2,505.72 is: 3,456.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.20 : 5,626.08 = 2,505.72 : x
  2. Step 2: Convert to fraction form
    4,078.20/5,626.08 = 2,505.72/x
  3. Step 3: Cross multiply
    4,078.20x = 5,626.08 × 2,505.72
  4. Step 4: Simplify right side
    4,078.20x = 14,097,381.18
  5. Step 5: Solve for x
    x = 14,097,381.18/4,078.20
  6. Step 6: Final answer
    x = 3,456.77

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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.