Home / 5,679.46-8,516.75-1,980.60

Finding the Fourth Proportional to 5,679.46, 8,516.75 and 1,980.60

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Solution

The fourth proportional to 5,679.46, 8,516.75 and 1,980.60 is: 2,970.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679.46 : 8,516.75 = 1,980.60 : x
  2. Step 2: Convert to fraction form
    5,679.46/8,516.75 = 1,980.60/x
  3. Step 3: Cross multiply
    5,679.46x = 8,516.75 × 1,980.60
  4. Step 4: Simplify right side
    5,679.46x = 16,868,232.47
  5. Step 5: Solve for x
    x = 16,868,232.47/5,679.46
  6. Step 6: Final answer
    x = 2,970.04

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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.