Home / 3,937.86-5,434.68-2,259.36

Finding the Fourth Proportional to 3,937.86, 5,434.68 and 2,259.36

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Solution

The fourth proportional to 3,937.86, 5,434.68 and 2,259.36 is: 3,118.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.86 : 5,434.68 = 2,259.36 : x
  2. Step 2: Convert to fraction form
    3,937.86/5,434.68 = 2,259.36/x
  3. Step 3: Cross multiply
    3,937.86x = 5,434.68 × 2,259.36
  4. Step 4: Simplify right side
    3,937.86x = 12,278,898.60
  5. Step 5: Solve for x
    x = 12,278,898.60/3,937.86
  6. Step 6: Final answer
    x = 3,118.17

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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.