Home / 5,678.16-8,516.43-1,781.34

Finding the Fourth Proportional to 5,678.16, 8,516.43 and 1,781.34

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Solution

The fourth proportional to 5,678.16, 8,516.43 and 1,781.34 is: 2,671.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.16 : 8,516.43 = 1,781.34 : x
  2. Step 2: Convert to fraction form
    5,678.16/8,516.43 = 1,781.34/x
  3. Step 3: Cross multiply
    5,678.16x = 8,516.43 × 1,781.34
  4. Step 4: Simplify right side
    5,678.16x = 15,170,657.42
  5. Step 5: Solve for x
    x = 15,170,657.42/5,678.16
  6. Step 6: Final answer
    x = 2,671.76

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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.