Home / 7,012.80-10,519.68-2,852.76

Finding the Fourth Proportional to 7,012.80, 10,519.68 and 2,852.76

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Solution

The fourth proportional to 7,012.80, 10,519.68 and 2,852.76 is: 4,279.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,012.80 : 10,519.68 = 2,852.76 : x
  2. Step 2: Convert to fraction form
    7,012.80/10,519.68 = 2,852.76/x
  3. Step 3: Cross multiply
    7,012.80x = 10,519.68 × 2,852.76
  4. Step 4: Simplify right side
    7,012.80x = 30,010,122.32
  5. Step 5: Solve for x
    x = 30,010,122.32/7,012.80
  6. Step 6: Final answer
    x = 4,279.34

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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.