Home / 3,557.77-4,909.70-1,942.68

Finding the Fourth Proportional to 3,557.77, 4,909.70 and 1,942.68

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Solution

The fourth proportional to 3,557.77, 4,909.70 and 1,942.68 is: 2,680.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,557.77 : 4,909.70 = 1,942.68 : x
  2. Step 2: Convert to fraction form
    3,557.77/4,909.70 = 1,942.68/x
  3. Step 3: Cross multiply
    3,557.77x = 4,909.70 × 1,942.68
  4. Step 4: Simplify right side
    3,557.77x = 9,537,976.00
  5. Step 5: Solve for x
    x = 9,537,976.00/3,557.77
  6. Step 6: Final answer
    x = 2,680.89

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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.