Home / 2,341.32-3,231.36-2,143.68

Finding the Fourth Proportional to 2,341.32, 3,231.36 and 2,143.68

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Solution

The fourth proportional to 2,341.32, 3,231.36 and 2,143.68 is: 2,958.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,341.32 : 3,231.36 = 2,143.68 : x
  2. Step 2: Convert to fraction form
    2,341.32/3,231.36 = 2,143.68/x
  3. Step 3: Cross multiply
    2,341.32x = 3,231.36 × 2,143.68
  4. Step 4: Simplify right side
    2,341.32x = 6,927,001.80
  5. Step 5: Solve for x
    x = 6,927,001.80/2,341.32
  6. Step 6: Final answer
    x = 2,958.59

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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.