Home / 5,216.55-7,825.61-1,518.30

Finding the Fourth Proportional to 5,216.55, 7,825.61 and 1,518.30

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Solution

The fourth proportional to 5,216.55, 7,825.61 and 1,518.30 is: 2,277.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.55 : 7,825.61 = 1,518.30 : x
  2. Step 2: Convert to fraction form
    5,216.55/7,825.61 = 1,518.30/x
  3. Step 3: Cross multiply
    5,216.55x = 7,825.61 × 1,518.30
  4. Step 4: Simplify right side
    5,216.55x = 11,881,616.07
  5. Step 5: Solve for x
    x = 11,881,616.07/5,216.55
  6. Step 6: Final answer
    x = 2,277.68

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1.5x scale

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.