Home / 5,280.63-7,914.56-2,160.51

Finding the Fourth Proportional to 5,280.63, 7,914.56 and 2,160.51

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Solution

The fourth proportional to 5,280.63, 7,914.56 and 2,160.51 is: 3,238.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.63 : 7,914.56 = 2,160.51 : x
  2. Step 2: Convert to fraction form
    5,280.63/7,914.56 = 2,160.51/x
  3. Step 3: Cross multiply
    5,280.63x = 7,914.56 × 2,160.51
  4. Step 4: Simplify right side
    5,280.63x = 17,099,475.22
  5. Step 5: Solve for x
    x = 17,099,475.22/5,280.63
  6. Step 6: Final answer
    x = 3,238.15

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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.