Home / 4,845.21-7,269.63-2,898.78

Finding the Fourth Proportional to 4,845.21, 7,269.63 and 2,898.78

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Solution

The fourth proportional to 4,845.21, 7,269.63 and 2,898.78 is: 4,349.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,845.21 : 7,269.63 = 2,898.78 : x
  2. Step 2: Convert to fraction form
    4,845.21/7,269.63 = 2,898.78/x
  3. Step 3: Cross multiply
    4,845.21x = 7,269.63 × 2,898.78
  4. Step 4: Simplify right side
    4,845.21x = 21,073,058.05
  5. Step 5: Solve for x
    x = 21,073,058.05/4,845.21
  6. Step 6: Final answer
    x = 4,349.26

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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.