Home / 7,900.87-11,852.51-2,970.85

Finding the Fourth Proportional to 7,900.87, 11,852.51 and 2,970.85

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Solution

The fourth proportional to 7,900.87, 11,852.51 and 2,970.85 is: 4,456.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,900.87 : 11,852.51 = 2,970.85 : x
  2. Step 2: Convert to fraction form
    7,900.87/11,852.51 = 2,970.85/x
  3. Step 3: Cross multiply
    7,900.87x = 11,852.51 × 2,970.85
  4. Step 4: Simplify right side
    7,900.87x = 35,212,007.13
  5. Step 5: Solve for x
    x = 35,212,007.13/7,900.87
  6. Step 6: Final answer
    x = 4,456.73

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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.