Home / 2,957.77-4,081.70-1,631.45

Finding the Fourth Proportional to 2,957.77, 4,081.70 and 1,631.45

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Solution

The fourth proportional to 2,957.77, 4,081.70 and 1,631.45 is: 2,251.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,957.77 : 4,081.70 = 1,631.45 : x
  2. Step 2: Convert to fraction form
    2,957.77/4,081.70 = 1,631.45/x
  3. Step 3: Cross multiply
    2,957.77x = 4,081.70 × 1,631.45
  4. Step 4: Simplify right side
    2,957.77x = 6,659,073.14
  5. Step 5: Solve for x
    x = 6,659,073.14/2,957.77
  6. Step 6: Final answer
    x = 2,251.38

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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.