Home / 5,830.78-8,046.48-3,178.19

Finding the Fourth Proportional to 5,830.78, 8,046.48 and 3,178.19

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Solution

The fourth proportional to 5,830.78, 8,046.48 and 3,178.19 is: 4,385.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,830.78 : 8,046.48 = 3,178.19 : x
  2. Step 2: Convert to fraction form
    5,830.78/8,046.48 = 3,178.19/x
  3. Step 3: Cross multiply
    5,830.78x = 8,046.48 × 3,178.19
  4. Step 4: Simplify right side
    5,830.78x = 25,573,242.27
  5. Step 5: Solve for x
    x = 25,573,242.27/5,830.78
  6. Step 6: Final answer
    x = 4,385.90

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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.