Home / 3,117.50-4,296.22-2,231.77

Finding the Fourth Proportional to 3,117.50, 4,296.22 and 2,231.77

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Solution

The fourth proportional to 3,117.50, 4,296.22 and 2,231.77 is: 3,075.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.50 : 4,296.22 = 2,231.77 : x
  2. Step 2: Convert to fraction form
    3,117.50/4,296.22 = 2,231.77/x
  3. Step 3: Cross multiply
    3,117.50x = 4,296.22 × 2,231.77
  4. Step 4: Simplify right side
    3,117.50x = 9,588,158.59
  5. Step 5: Solve for x
    x = 9,588,158.59/3,117.50
  6. Step 6: Final answer
    x = 3,075.59

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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.