Home / 3,903.15-5,386.43-2,134.83

Finding the Fourth Proportional to 3,903.15, 5,386.43 and 2,134.83

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Solution

The fourth proportional to 3,903.15, 5,386.43 and 2,134.83 is: 2,946.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.15 : 5,386.43 = 2,134.83 : x
  2. Step 2: Convert to fraction form
    3,903.15/5,386.43 = 2,134.83/x
  3. Step 3: Cross multiply
    3,903.15x = 5,386.43 × 2,134.83
  4. Step 4: Simplify right side
    3,903.15x = 11,499,112.36
  5. Step 5: Solve for x
    x = 11,499,112.36/3,903.15
  6. Step 6: Final answer
    x = 2,946.11

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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.