Home / 3,981.38-5,494.64-2,303.26

Finding the Fourth Proportional to 3,981.38, 5,494.64 and 2,303.26

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Solution

The fourth proportional to 3,981.38, 5,494.64 and 2,303.26 is: 3,178.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.38 : 5,494.64 = 2,303.26 : x
  2. Step 2: Convert to fraction form
    3,981.38/5,494.64 = 2,303.26/x
  3. Step 3: Cross multiply
    3,981.38x = 5,494.64 × 2,303.26
  4. Step 4: Simplify right side
    3,981.38x = 12,655,573.01
  5. Step 5: Solve for x
    x = 12,655,573.01/3,981.38
  6. Step 6: Final answer
    x = 3,178.69

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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.