Home / 4,140.03-5,710.35-2,811.43

Finding the Fourth Proportional to 4,140.03, 5,710.35 and 2,811.43

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Solution

The fourth proportional to 4,140.03, 5,710.35 and 2,811.43 is: 3,877.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.03 : 5,710.35 = 2,811.43 : x
  2. Step 2: Convert to fraction form
    4,140.03/5,710.35 = 2,811.43/x
  3. Step 3: Cross multiply
    4,140.03x = 5,710.35 × 2,811.43
  4. Step 4: Simplify right side
    4,140.03x = 16,054,206.69
  5. Step 5: Solve for x
    x = 16,054,206.69/4,140.03
  6. Step 6: Final answer
    x = 3,877.80

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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.