Home / 5,416.28-8,125.62-1,718.72

Finding the Fourth Proportional to 5,416.28, 8,125.62 and 1,718.72

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Solution

The fourth proportional to 5,416.28, 8,125.62 and 1,718.72 is: 2,578.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.28 : 8,125.62 = 1,718.72 : x
  2. Step 2: Convert to fraction form
    5,416.28/8,125.62 = 1,718.72/x
  3. Step 3: Cross multiply
    5,416.28x = 8,125.62 × 1,718.72
  4. Step 4: Simplify right side
    5,416.28x = 13,965,665.61
  5. Step 5: Solve for x
    x = 13,965,665.61/5,416.28
  6. Step 6: Final answer
    x = 2,578.46

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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.