Home / 5,355.81-7,391.16-2,997.72

Finding the Fourth Proportional to 5,355.81, 7,391.16 and 2,997.72

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Solution

The fourth proportional to 5,355.81, 7,391.16 and 2,997.72 is: 4,136.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,355.81 : 7,391.16 = 2,997.72 : x
  2. Step 2: Convert to fraction form
    5,355.81/7,391.16 = 2,997.72/x
  3. Step 3: Cross multiply
    5,355.81x = 7,391.16 × 2,997.72
  4. Step 4: Simplify right side
    5,355.81x = 22,156,628.16
  5. Step 5: Solve for x
    x = 22,156,628.16/5,355.81
  6. Step 6: Final answer
    x = 4,136.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.