Home / 5,416.71-8,125.28-1,718.85

Finding the Fourth Proportional to 5,416.71, 8,125.28 and 1,718.85

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Solution

The fourth proportional to 5,416.71, 8,125.28 and 1,718.85 is: 2,578.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.71 : 8,125.28 = 1,718.85 : x
  2. Step 2: Convert to fraction form
    5,416.71/8,125.28 = 1,718.85/x
  3. Step 3: Cross multiply
    5,416.71x = 8,125.28 × 1,718.85
  4. Step 4: Simplify right side
    5,416.71x = 13,966,128.93
  5. Step 5: Solve for x
    x = 13,966,128.93/5,416.71
  6. Step 6: Final answer
    x = 2,578.34

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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.