Home / 1,705.21-2,555.38-1,356.98

Finding the Fourth Proportional to 1,705.21, 2,555.38 and 1,356.98

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Solution

The fourth proportional to 1,705.21, 2,555.38 and 1,356.98 is: 2,033.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,705.21 : 2,555.38 = 1,356.98 : x
  2. Step 2: Convert to fraction form
    1,705.21/2,555.38 = 1,356.98/x
  3. Step 3: Cross multiply
    1,705.21x = 2,555.38 × 1,356.98
  4. Step 4: Simplify right side
    1,705.21x = 3,467,579.99
  5. Step 5: Solve for x
    x = 3,467,579.99/1,705.21
  6. Step 6: Final answer
    x = 2,033.52

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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.