Home / 5,539.68-8,309.48-1,643.80

Finding the Fourth Proportional to 5,539.68, 8,309.48 and 1,643.80

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Solution

The fourth proportional to 5,539.68, 8,309.48 and 1,643.80 is: 2,465.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,539.68 : 8,309.48 = 1,643.80 : x
  2. Step 2: Convert to fraction form
    5,539.68/8,309.48 = 1,643.80/x
  3. Step 3: Cross multiply
    5,539.68x = 8,309.48 × 1,643.80
  4. Step 4: Simplify right side
    5,539.68x = 13,659,123.22
  5. Step 5: Solve for x
    x = 13,659,123.22/5,539.68
  6. Step 6: Final answer
    x = 2,465.69

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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.