Home / 7,985.10-11,976.10-3,053.56

Finding the Fourth Proportional to 7,985.10, 11,976.10 and 3,053.56

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Solution

The fourth proportional to 7,985.10, 11,976.10 and 3,053.56 is: 4,579.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985.10 : 11,976.10 = 3,053.56 : x
  2. Step 2: Convert to fraction form
    7,985.10/11,976.10 = 3,053.56/x
  3. Step 3: Cross multiply
    7,985.10x = 11,976.10 × 3,053.56
  4. Step 4: Simplify right side
    7,985.10x = 36,569,739.92
  5. Step 5: Solve for x
    x = 36,569,739.92/7,985.10
  6. Step 6: Final answer
    x = 4,579.75

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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.