Home / 3,126.60-4,314.60-1,800.09

Finding the Fourth Proportional to 3,126.60, 4,314.60 and 1,800.09

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Solution

The fourth proportional to 3,126.60, 4,314.60 and 1,800.09 is: 2,484.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.60 : 4,314.60 = 1,800.09 : x
  2. Step 2: Convert to fraction form
    3,126.60/4,314.60 = 1,800.09/x
  3. Step 3: Cross multiply
    3,126.60x = 4,314.60 × 1,800.09
  4. Step 4: Simplify right side
    3,126.60x = 7,766,668.31
  5. Step 5: Solve for x
    x = 7,766,668.31/3,126.60
  6. Step 6: Final answer
    x = 2,484.06

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1.5x scale

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.