Home / 1,656.20-2,467.13-1,617.80

Finding the Fourth Proportional to 1,656.20, 2,467.13 and 1,617.80

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Solution

The fourth proportional to 1,656.20, 2,467.13 and 1,617.80 is: 2,409.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,656.20 : 2,467.13 = 1,617.80 : x
  2. Step 2: Convert to fraction form
    1,656.20/2,467.13 = 1,617.80/x
  3. Step 3: Cross multiply
    1,656.20x = 2,467.13 × 1,617.80
  4. Step 4: Simplify right side
    1,656.20x = 3,991,322.91
  5. Step 5: Solve for x
    x = 3,991,322.91/1,656.20
  6. Step 6: Final answer
    x = 2,409.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.