Home / 5,477.28-7,558.68-3,119.46

Finding the Fourth Proportional to 5,477.28, 7,558.68 and 3,119.46

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Solution

The fourth proportional to 5,477.28, 7,558.68 and 3,119.46 is: 4,304.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,477.28 : 7,558.68 = 3,119.46 : x
  2. Step 2: Convert to fraction form
    5,477.28/7,558.68 = 3,119.46/x
  3. Step 3: Cross multiply
    5,477.28x = 7,558.68 × 3,119.46
  4. Step 4: Simplify right side
    5,477.28x = 23,578,999.91
  5. Step 5: Solve for x
    x = 23,578,999.91/5,477.28
  6. Step 6: Final answer
    x = 4,304.87

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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.