Home / 8,640.27-12,960.41-2,797.34

Finding the Fourth Proportional to 8,640.27, 12,960.41 and 2,797.34

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Solution

The fourth proportional to 8,640.27, 12,960.41 and 2,797.34 is: 4,196.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,640.27 : 12,960.41 = 2,797.34 : x
  2. Step 2: Convert to fraction form
    8,640.27/12,960.41 = 2,797.34/x
  3. Step 3: Cross multiply
    8,640.27x = 12,960.41 × 2,797.34
  4. Step 4: Simplify right side
    8,640.27x = 36,254,594.52
  5. Step 5: Solve for x
    x = 36,254,594.52/8,640.27
  6. Step 6: Final answer
    x = 4,196.00

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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.