Home / 3,015.96-4,162.42-1,689.74

Finding the Fourth Proportional to 3,015.96, 4,162.42 and 1,689.74

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Solution

The fourth proportional to 3,015.96, 4,162.42 and 1,689.74 is: 2,332.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.96 : 4,162.42 = 1,689.74 : x
  2. Step 2: Convert to fraction form
    3,015.96/4,162.42 = 1,689.74/x
  3. Step 3: Cross multiply
    3,015.96x = 4,162.42 × 1,689.74
  4. Step 4: Simplify right side
    3,015.96x = 7,033,407.57
  5. Step 5: Solve for x
    x = 7,033,407.57/3,015.96
  6. Step 6: Final answer
    x = 2,332.06

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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.