Home / 1,635.21-2,256.98-1,006.13

Finding the Fourth Proportional to 1,635.21, 2,256.98 and 1,006.13

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Solution

The fourth proportional to 1,635.21, 2,256.98 and 1,006.13 is: 1,388.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,635.21 : 2,256.98 = 1,006.13 : x
  2. Step 2: Convert to fraction form
    1,635.21/2,256.98 = 1,006.13/x
  3. Step 3: Cross multiply
    1,635.21x = 2,256.98 × 1,006.13
  4. Step 4: Simplify right side
    1,635.21x = 2,270,815.90
  5. Step 5: Solve for x
    x = 2,270,815.90/1,635.21
  6. Step 6: Final answer
    x = 1,388.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.