Home / 5,457.47-8,186.40-1,759.75

Finding the Fourth Proportional to 5,457.47, 8,186.40 and 1,759.75

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Solution

The fourth proportional to 5,457.47, 8,186.40 and 1,759.75 is: 2,639.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,457.47 : 8,186.40 = 1,759.75 : x
  2. Step 2: Convert to fraction form
    5,457.47/8,186.40 = 1,759.75/x
  3. Step 3: Cross multiply
    5,457.47x = 8,186.40 × 1,759.75
  4. Step 4: Simplify right side
    5,457.47x = 14,405,976.47
  5. Step 5: Solve for x
    x = 14,405,976.47/5,457.47
  6. Step 6: Final answer
    x = 2,639.68

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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.