Home / 5,409.15-8,112.56-1,711.68

Finding the Fourth Proportional to 5,409.15, 8,112.56 and 1,711.68

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Solution

The fourth proportional to 5,409.15, 8,112.56 and 1,711.68 is: 2,567.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,409.15 : 8,112.56 = 1,711.68 : x
  2. Step 2: Convert to fraction form
    5,409.15/8,112.56 = 1,711.68/x
  3. Step 3: Cross multiply
    5,409.15x = 8,112.56 × 1,711.68
  4. Step 4: Simplify right side
    5,409.15x = 13,886,098.14
  5. Step 5: Solve for x
    x = 13,886,098.14/5,409.15
  6. Step 6: Final answer
    x = 2,567.15

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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.