Home / 7,809.24-11,710.26-2,878.68

Finding the Fourth Proportional to 7,809.24, 11,710.26 and 2,878.68

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Solution

The fourth proportional to 7,809.24, 11,710.26 and 2,878.68 is: 4,316.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,809.24 : 11,710.26 = 2,878.68 : x
  2. Step 2: Convert to fraction form
    7,809.24/11,710.26 = 2,878.68/x
  3. Step 3: Cross multiply
    7,809.24x = 11,710.26 × 2,878.68
  4. Step 4: Simplify right side
    7,809.24x = 33,710,091.26
  5. Step 5: Solve for x
    x = 33,710,091.26/7,809.24
  6. Step 6: Final answer
    x = 4,316.69

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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.