Home / 5,285.71-7,293.76-3,160.81

Finding the Fourth Proportional to 5,285.71, 7,293.76 and 3,160.81

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Solution

The fourth proportional to 5,285.71, 7,293.76 and 3,160.81 is: 4,361.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285.71 : 7,293.76 = 3,160.81 : x
  2. Step 2: Convert to fraction form
    5,285.71/7,293.76 = 3,160.81/x
  3. Step 3: Cross multiply
    5,285.71x = 7,293.76 × 3,160.81
  4. Step 4: Simplify right side
    5,285.71x = 23,054,173.74
  5. Step 5: Solve for x
    x = 23,054,173.74/5,285.71
  6. Step 6: Final answer
    x = 4,361.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.