Home / 1,668.30-2,486.62-1,656.15

Finding the Fourth Proportional to 1,668.30, 2,486.62 and 1,656.15

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Solution

The fourth proportional to 1,668.30, 2,486.62 and 1,656.15 is: 2,468.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668.30 : 2,486.62 = 1,656.15 : x
  2. Step 2: Convert to fraction form
    1,668.30/2,486.62 = 1,656.15/x
  3. Step 3: Cross multiply
    1,668.30x = 2,486.62 × 1,656.15
  4. Step 4: Simplify right side
    1,668.30x = 4,118,211.57
  5. Step 5: Solve for x
    x = 4,118,211.57/1,668.30
  6. Step 6: Final answer
    x = 2,468.51

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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.