Home / 4,280.85-5,904.36-3,218.94

Finding the Fourth Proportional to 4,280.85, 5,904.36 and 3,218.94

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Solution

The fourth proportional to 4,280.85, 5,904.36 and 3,218.94 is: 4,439.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.85 : 5,904.36 = 3,218.94 : x
  2. Step 2: Convert to fraction form
    4,280.85/5,904.36 = 3,218.94/x
  3. Step 3: Cross multiply
    4,280.85x = 5,904.36 × 3,218.94
  4. Step 4: Simplify right side
    4,280.85x = 19,005,780.58
  5. Step 5: Solve for x
    x = 19,005,780.58/4,280.85
  6. Step 6: Final answer
    x = 4,439.72

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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.