Home / 5,440.64-8,160.99-1,977.80

Finding the Fourth Proportional to 5,440.64, 8,160.99 and 1,977.80

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Solution

The fourth proportional to 5,440.64, 8,160.99 and 1,977.80 is: 2,966.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.64 : 8,160.99 = 1,977.80 : x
  2. Step 2: Convert to fraction form
    5,440.64/8,160.99 = 1,977.80/x
  3. Step 3: Cross multiply
    5,440.64x = 8,160.99 × 1,977.80
  4. Step 4: Simplify right side
    5,440.64x = 16,140,806.02
  5. Step 5: Solve for x
    x = 16,140,806.02/5,440.64
  6. Step 6: Final answer
    x = 2,966.71

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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.