Home / 3,900.32-5,382.33-2,307.05

Finding the Fourth Proportional to 3,900.32, 5,382.33 and 2,307.05

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Solution

The fourth proportional to 3,900.32, 5,382.33 and 2,307.05 is: 3,183.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900.32 : 5,382.33 = 2,307.05 : x
  2. Step 2: Convert to fraction form
    3,900.32/5,382.33 = 2,307.05/x
  3. Step 3: Cross multiply
    3,900.32x = 5,382.33 × 2,307.05
  4. Step 4: Simplify right side
    3,900.32x = 12,417,277.51
  5. Step 5: Solve for x
    x = 12,417,277.51/3,900.32
  6. Step 6: Final answer
    x = 3,183.66

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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.