Home / 2,957.90-4,081.77-1,631.57

Finding the Fourth Proportional to 2,957.90, 4,081.77 and 1,631.57

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Solution

The fourth proportional to 2,957.90, 4,081.77 and 1,631.57 is: 2,251.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,957.90 : 4,081.77 = 1,631.57 : x
  2. Step 2: Convert to fraction form
    2,957.90/4,081.77 = 1,631.57/x
  3. Step 3: Cross multiply
    2,957.90x = 4,081.77 × 1,631.57
  4. Step 4: Simplify right side
    2,957.90x = 6,659,673.07
  5. Step 5: Solve for x
    x = 6,659,673.07/2,957.90
  6. Step 6: Final answer
    x = 2,251.49

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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.