Home / 3,825.81-5,282.73-3,117.76

Finding the Fourth Proportional to 3,825.81, 5,282.73 and 3,117.76

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Solution

The fourth proportional to 3,825.81, 5,282.73 and 3,117.76 is: 4,305.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.81 : 5,282.73 = 3,117.76 : x
  2. Step 2: Convert to fraction form
    3,825.81/5,282.73 = 3,117.76/x
  3. Step 3: Cross multiply
    3,825.81x = 5,282.73 × 3,117.76
  4. Step 4: Simplify right side
    3,825.81x = 16,470,271.08
  5. Step 5: Solve for x
    x = 16,470,271.08/3,825.81
  6. Step 6: Final answer
    x = 4,305.04

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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.