Home / 3,911.58-5,398.08-2,340.57

Finding the Fourth Proportional to 3,911.58, 5,398.08 and 2,340.57

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Solution

The fourth proportional to 3,911.58, 5,398.08 and 2,340.57 is: 3,230.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.58 : 5,398.08 = 2,340.57 : x
  2. Step 2: Convert to fraction form
    3,911.58/5,398.08 = 2,340.57/x
  3. Step 3: Cross multiply
    3,911.58x = 5,398.08 × 2,340.57
  4. Step 4: Simplify right side
    3,911.58x = 12,634,584.11
  5. Step 5: Solve for x
    x = 12,634,584.11/3,911.58
  6. Step 6: Final answer
    x = 3,230.05

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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.