Home / 3,903.42-5,384.83-2,309.63

Finding the Fourth Proportional to 3,903.42, 5,384.83 and 2,309.63

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Solution

The fourth proportional to 3,903.42, 5,384.83 and 2,309.63 is: 3,186.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.42 : 5,384.83 = 2,309.63 : x
  2. Step 2: Convert to fraction form
    3,903.42/5,384.83 = 2,309.63/x
  3. Step 3: Cross multiply
    3,903.42x = 5,384.83 × 2,309.63
  4. Step 4: Simplify right side
    3,903.42x = 12,436,953.36
  5. Step 5: Solve for x
    x = 12,436,953.36/3,903.42
  6. Step 6: Final answer
    x = 3,186.17

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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.