Home / 3,113.23-4,290.35-2,227.50

Finding the Fourth Proportional to 3,113.23, 4,290.35 and 2,227.50

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Solution

The fourth proportional to 3,113.23, 4,290.35 and 2,227.50 is: 3,069.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.23 : 4,290.35 = 2,227.50 : x
  2. Step 2: Convert to fraction form
    3,113.23/4,290.35 = 2,227.50/x
  3. Step 3: Cross multiply
    3,113.23x = 4,290.35 × 2,227.50
  4. Step 4: Simplify right side
    3,113.23x = 9,556,754.63
  5. Step 5: Solve for x
    x = 9,556,754.63/3,113.23
  6. Step 6: Final answer
    x = 3,069.72

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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.