Home / 5,280.13-7,921.93-1,771.79

Finding the Fourth Proportional to 5,280.13, 7,921.93 and 1,771.79

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Solution

The fourth proportional to 5,280.13, 7,921.93 and 1,771.79 is: 2,658.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.13 : 7,921.93 = 1,771.79 : x
  2. Step 2: Convert to fraction form
    5,280.13/7,921.93 = 1,771.79/x
  3. Step 3: Cross multiply
    5,280.13x = 7,921.93 × 1,771.79
  4. Step 4: Simplify right side
    5,280.13x = 14,035,956.75
  5. Step 5: Solve for x
    x = 14,035,956.75/5,280.13
  6. Step 6: Final answer
    x = 2,658.26

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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.