Home / 5,160.32-7,735.76-1,872.68

Finding the Fourth Proportional to 5,160.32, 7,735.76 and 1,872.68

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Solution

The fourth proportional to 5,160.32, 7,735.76 and 1,872.68 is: 2,807.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160.32 : 7,735.76 = 1,872.68 : x
  2. Step 2: Convert to fraction form
    5,160.32/7,735.76 = 1,872.68/x
  3. Step 3: Cross multiply
    5,160.32x = 7,735.76 × 1,872.68
  4. Step 4: Simplify right side
    5,160.32x = 14,486,603.04
  5. Step 5: Solve for x
    x = 14,486,603.04/5,160.32
  6. Step 6: Final answer
    x = 2,807.31

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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.