Home / 4,272.11-6,403.30-2,075.79

Finding the Fourth Proportional to 4,272.11, 6,403.30 and 2,075.79

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Solution

The fourth proportional to 4,272.11, 6,403.30 and 2,075.79 is: 3,111.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,272.11 : 6,403.30 = 2,075.79 : x
  2. Step 2: Convert to fraction form
    4,272.11/6,403.30 = 2,075.79/x
  3. Step 3: Cross multiply
    4,272.11x = 6,403.30 × 2,075.79
  4. Step 4: Simplify right side
    4,272.11x = 13,291,936.61
  5. Step 5: Solve for x
    x = 13,291,936.61/4,272.11
  6. Step 6: Final answer
    x = 3,111.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.