Home / 5,411.76-8,117.94-1,516.47

Finding the Fourth Proportional to 5,411.76, 8,117.94 and 1,516.47

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Solution

The fourth proportional to 5,411.76, 8,117.94 and 1,516.47 is: 2,274.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,411.76 : 8,117.94 = 1,516.47 : x
  2. Step 2: Convert to fraction form
    5,411.76/8,117.94 = 1,516.47/x
  3. Step 3: Cross multiply
    5,411.76x = 8,117.94 × 1,516.47
  4. Step 4: Simplify right side
    5,411.76x = 12,310,612.47
  5. Step 5: Solve for x
    x = 12,310,612.47/5,411.76
  6. Step 6: Final answer
    x = 2,274.79

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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.