Home / 3,455.79-5,184.20-1,234.45

Finding the Fourth Proportional to 3,455.79, 5,184.20 and 1,234.45

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Solution

The fourth proportional to 3,455.79, 5,184.20 and 1,234.45 is: 1,851.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.79 : 5,184.20 = 1,234.45 : x
  2. Step 2: Convert to fraction form
    3,455.79/5,184.20 = 1,234.45/x
  3. Step 3: Cross multiply
    3,455.79x = 5,184.20 × 1,234.45
  4. Step 4: Simplify right side
    3,455.79x = 6,399,603.60
  5. Step 5: Solve for x
    x = 6,399,603.60/3,455.79
  6. Step 6: Final answer
    x = 1,851.85

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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.