Home / 5,416.81-8,124.38-1,718.56

Finding the Fourth Proportional to 5,416.81, 8,124.38 and 1,718.56

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Solution

The fourth proportional to 5,416.81, 8,124.38 and 1,718.56 is: 2,577.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.81 : 8,124.38 = 1,718.56 : x
  2. Step 2: Convert to fraction form
    5,416.81/8,124.38 = 1,718.56/x
  3. Step 3: Cross multiply
    5,416.81x = 8,124.38 × 1,718.56
  4. Step 4: Simplify right side
    5,416.81x = 13,962,200.02
  5. Step 5: Solve for x
    x = 13,962,200.02/5,416.81
  6. Step 6: Final answer
    x = 2,577.57

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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.