Home / 4,137.40-5,703.78-2,811.16

Finding the Fourth Proportional to 4,137.40, 5,703.78 and 2,811.16

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Solution

The fourth proportional to 4,137.40, 5,703.78 and 2,811.16 is: 3,875.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,137.40 : 5,703.78 = 2,811.16 : x
  2. Step 2: Convert to fraction form
    4,137.40/5,703.78 = 2,811.16/x
  3. Step 3: Cross multiply
    4,137.40x = 5,703.78 × 2,811.16
  4. Step 4: Simplify right side
    4,137.40x = 16,034,238.18
  5. Step 5: Solve for x
    x = 16,034,238.18/4,137.40
  6. Step 6: Final answer
    x = 3,875.44

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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.