Home / 5,216.16-7,825.39-1,518.68

Finding the Fourth Proportional to 5,216.16, 7,825.39 and 1,518.68

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Solution

The fourth proportional to 5,216.16, 7,825.39 and 1,518.68 is: 2,278.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.16 : 7,825.39 = 1,518.68 : x
  2. Step 2: Convert to fraction form
    5,216.16/7,825.39 = 1,518.68/x
  3. Step 3: Cross multiply
    5,216.16x = 7,825.39 × 1,518.68
  4. Step 4: Simplify right side
    5,216.16x = 11,884,263.29
  5. Step 5: Solve for x
    x = 11,884,263.29/5,216.16
  6. Step 6: Final answer
    x = 2,278.35

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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.