Home / 7,705.24-11,557.86-3,085

Finding the Fourth Proportional to 7,705.24, 11,557.86 and 3,085

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Solution

The fourth proportional to 7,705.24, 11,557.86 and 3,085 is: 4,627.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,705.24 : 11,557.86 = 3,085 : x
  2. Step 2: Convert to fraction form
    7,705.24/11,557.86 = 3,085/x
  3. Step 3: Cross multiply
    7,705.24x = 11,557.86 × 3,085
  4. Step 4: Simplify right side
    7,705.24x = 35,655,998.10
  5. Step 5: Solve for x
    x = 35,655,998.10/7,705.24
  6. Step 6: Final answer
    x = 4,627.50

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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.