Home / 8,722.45-13,079.76-2,798.25

Finding the Fourth Proportional to 8,722.45, 13,079.76 and 2,798.25

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Solution

The fourth proportional to 8,722.45, 13,079.76 and 2,798.25 is: 4,196.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.45 : 13,079.76 = 2,798.25 : x
  2. Step 2: Convert to fraction form
    8,722.45/13,079.76 = 2,798.25/x
  3. Step 3: Cross multiply
    8,722.45x = 13,079.76 × 2,798.25
  4. Step 4: Simplify right side
    8,722.45x = 36,600,438.42
  5. Step 5: Solve for x
    x = 36,600,438.42/8,722.45
  6. Step 6: Final answer
    x = 4,196.12

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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.