Home / 3,125.54-4,690.54-1,178.30

Finding the Fourth Proportional to 3,125.54, 4,690.54 and 1,178.30

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Solution

The fourth proportional to 3,125.54, 4,690.54 and 1,178.30 is: 1,768.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.54 : 4,690.54 = 1,178.30 : x
  2. Step 2: Convert to fraction form
    3,125.54/4,690.54 = 1,178.30/x
  3. Step 3: Cross multiply
    3,125.54x = 4,690.54 × 1,178.30
  4. Step 4: Simplify right side
    3,125.54x = 5,526,863.28
  5. Step 5: Solve for x
    x = 5,526,863.28/3,125.54
  6. Step 6: Final answer
    x = 1,768.29

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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.