Home / 5,144.15-7,715.01-2,220.86

Finding the Fourth Proportional to 5,144.15, 7,715.01 and 2,220.86

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Solution

The fourth proportional to 5,144.15, 7,715.01 and 2,220.86 is: 3,330.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,144.15 : 7,715.01 = 2,220.86 : x
  2. Step 2: Convert to fraction form
    5,144.15/7,715.01 = 2,220.86/x
  3. Step 3: Cross multiply
    5,144.15x = 7,715.01 × 2,220.86
  4. Step 4: Simplify right side
    5,144.15x = 17,133,957.11
  5. Step 5: Solve for x
    x = 17,133,957.11/5,144.15
  6. Step 6: Final answer
    x = 3,330.77

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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.