Home / 3,957.12-5,458.26-3,116.46

Finding the Fourth Proportional to 3,957.12, 5,458.26 and 3,116.46

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Solution

The fourth proportional to 3,957.12, 5,458.26 and 3,116.46 is: 4,298.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.12 : 5,458.26 = 3,116.46 : x
  2. Step 2: Convert to fraction form
    3,957.12/5,458.26 = 3,116.46/x
  3. Step 3: Cross multiply
    3,957.12x = 5,458.26 × 3,116.46
  4. Step 4: Simplify right side
    3,957.12x = 17,010,448.96
  5. Step 5: Solve for x
    x = 17,010,448.96/3,957.12
  6. Step 6: Final answer
    x = 4,298.69

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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.