Home / 4,688.62-7,032.78-1,914.57

Finding the Fourth Proportional to 4,688.62, 7,032.78 and 1,914.57

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Solution

The fourth proportional to 4,688.62, 7,032.78 and 1,914.57 is: 2,871.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,688.62 : 7,032.78 = 1,914.57 : x
  2. Step 2: Convert to fraction form
    4,688.62/7,032.78 = 1,914.57/x
  3. Step 3: Cross multiply
    4,688.62x = 7,032.78 × 1,914.57
  4. Step 4: Simplify right side
    4,688.62x = 13,464,749.60
  5. Step 5: Solve for x
    x = 13,464,749.60/4,688.62
  6. Step 6: Final answer
    x = 2,871.80

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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.