Home / 5,416.87-8,124.48-1,718.62

Finding the Fourth Proportional to 5,416.87, 8,124.48 and 1,718.62

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Solution

The fourth proportional to 5,416.87, 8,124.48 and 1,718.62 is: 2,577.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.87 : 8,124.48 = 1,718.62 : x
  2. Step 2: Convert to fraction form
    5,416.87/8,124.48 = 1,718.62/x
  3. Step 3: Cross multiply
    5,416.87x = 8,124.48 × 1,718.62
  4. Step 4: Simplify right side
    5,416.87x = 13,962,864.91
  5. Step 5: Solve for x
    x = 13,962,864.91/5,416.87
  6. Step 6: Final answer
    x = 2,577.66

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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.