Home / 7,705.23-11,557.81-1,861.84

Finding the Fourth Proportional to 7,705.23, 11,557.81 and 1,861.84

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Solution

The fourth proportional to 7,705.23, 11,557.81 and 1,861.84 is: 2,792.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,705.23 : 11,557.81 = 1,861.84 : x
  2. Step 2: Convert to fraction form
    7,705.23/11,557.81 = 1,861.84/x
  3. Step 3: Cross multiply
    7,705.23x = 11,557.81 × 1,861.84
  4. Step 4: Simplify right side
    7,705.23x = 21,518,792.97
  5. Step 5: Solve for x
    x = 21,518,792.97/7,705.23
  6. Step 6: Final answer
    x = 2,792.75

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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.