Home / 4,902.20-7,354.44-1,439.72

Finding the Fourth Proportional to 4,902.20, 7,354.44 and 1,439.72

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Solution

The fourth proportional to 4,902.20, 7,354.44 and 1,439.72 is: 2,159.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,902.20 : 7,354.44 = 1,439.72 : x
  2. Step 2: Convert to fraction form
    4,902.20/7,354.44 = 1,439.72/x
  3. Step 3: Cross multiply
    4,902.20x = 7,354.44 × 1,439.72
  4. Step 4: Simplify right side
    4,902.20x = 10,588,334.36
  5. Step 5: Solve for x
    x = 10,588,334.36/4,902.20
  6. Step 6: Final answer
    x = 2,159.91

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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.