Home / 5,678.80-8,516.91-1,782.28

Finding the Fourth Proportional to 5,678.80, 8,516.91 and 1,782.28

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Solution

The fourth proportional to 5,678.80, 8,516.91 and 1,782.28 is: 2,673.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.80 : 8,516.91 = 1,782.28 : x
  2. Step 2: Convert to fraction form
    5,678.80/8,516.91 = 1,782.28/x
  3. Step 3: Cross multiply
    5,678.80x = 8,516.91 × 1,782.28
  4. Step 4: Simplify right side
    5,678.80x = 15,179,518.35
  5. Step 5: Solve for x
    x = 15,179,518.35/5,678.80
  6. Step 6: Final answer
    x = 2,673.02

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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.