Home / 4,429.63-6,640.36-1,505.90

Finding the Fourth Proportional to 4,429.63, 6,640.36 and 1,505.90

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Solution

The fourth proportional to 4,429.63, 6,640.36 and 1,505.90 is: 2,257.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,429.63 : 6,640.36 = 1,505.90 : x
  2. Step 2: Convert to fraction form
    4,429.63/6,640.36 = 1,505.90/x
  3. Step 3: Cross multiply
    4,429.63x = 6,640.36 × 1,505.90
  4. Step 4: Simplify right side
    4,429.63x = 9,999,730.96
  5. Step 5: Solve for x
    x = 9,999,730.96/4,429.63
  6. Step 6: Final answer
    x = 2,257.47

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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.