Home / 5,218.08-7,828.32-1,708.20

Finding the Fourth Proportional to 5,218.08, 7,828.32 and 1,708.20

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Solution

The fourth proportional to 5,218.08, 7,828.32 and 1,708.20 is: 2,562.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.08 : 7,828.32 = 1,708.20 : x
  2. Step 2: Convert to fraction form
    5,218.08/7,828.32 = 1,708.20/x
  3. Step 3: Cross multiply
    5,218.08x = 7,828.32 × 1,708.20
  4. Step 4: Simplify right side
    5,218.08x = 13,372,336.22
  5. Step 5: Solve for x
    x = 13,372,336.22/5,218.08
  6. Step 6: Final answer
    x = 2,562.69

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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.