Home / 4,270.38-6,406.44-1,637.78

Finding the Fourth Proportional to 4,270.38, 6,406.44 and 1,637.78

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Solution

The fourth proportional to 4,270.38, 6,406.44 and 1,637.78 is: 2,457.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,270.38 : 6,406.44 = 1,637.78 : x
  2. Step 2: Convert to fraction form
    4,270.38/6,406.44 = 1,637.78/x
  3. Step 3: Cross multiply
    4,270.38x = 6,406.44 × 1,637.78
  4. Step 4: Simplify right side
    4,270.38x = 10,492,339.30
  5. Step 5: Solve for x
    x = 10,492,339.30/4,270.38
  6. Step 6: Final answer
    x = 2,457.00

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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.