Home / 3,051.56-4,209.61-1,930.61

Finding the Fourth Proportional to 3,051.56, 4,209.61 and 1,930.61

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Solution

The fourth proportional to 3,051.56, 4,209.61 and 1,930.61 is: 2,663.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,051.56 : 4,209.61 = 1,930.61 : x
  2. Step 2: Convert to fraction form
    3,051.56/4,209.61 = 1,930.61/x
  3. Step 3: Cross multiply
    3,051.56x = 4,209.61 × 1,930.61
  4. Step 4: Simplify right side
    3,051.56x = 8,127,105.51
  5. Step 5: Solve for x
    x = 8,127,105.51/3,051.56
  6. Step 6: Final answer
    x = 2,663.26

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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.