Home / 5,280.60-7,918.90-2,158.93

Finding the Fourth Proportional to 5,280.60, 7,918.90 and 2,158.93

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Solution

The fourth proportional to 5,280.60, 7,918.90 and 2,158.93 is: 3,237.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.60 : 7,918.90 = 2,158.93 : x
  2. Step 2: Convert to fraction form
    5,280.60/7,918.90 = 2,158.93/x
  3. Step 3: Cross multiply
    5,280.60x = 7,918.90 × 2,158.93
  4. Step 4: Simplify right side
    5,280.60x = 17,096,350.78
  5. Step 5: Solve for x
    x = 17,096,350.78/5,280.60
  6. Step 6: Final answer
    x = 3,237.58

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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.