Home / 3,333.72-5,000.58-1,280.28

Finding the Fourth Proportional to 3,333.72, 5,000.58 and 1,280.28

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Solution

The fourth proportional to 3,333.72, 5,000.58 and 1,280.28 is: 1,920.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,333.72 : 5,000.58 = 1,280.28 : x
  2. Step 2: Convert to fraction form
    3,333.72/5,000.58 = 1,280.28/x
  3. Step 3: Cross multiply
    3,333.72x = 5,000.58 × 1,280.28
  4. Step 4: Simplify right side
    3,333.72x = 6,402,142.56
  5. Step 5: Solve for x
    x = 6,402,142.56/3,333.72
  6. Step 6: Final answer
    x = 1,920.42

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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.