Home / 5,416.77-7,474.88-3,178.54

Finding the Fourth Proportional to 5,416.77, 7,474.88 and 3,178.54

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Solution

The fourth proportional to 5,416.77, 7,474.88 and 3,178.54 is: 4,386.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.77 : 7,474.88 = 3,178.54 : x
  2. Step 2: Convert to fraction form
    5,416.77/7,474.88 = 3,178.54/x
  3. Step 3: Cross multiply
    5,416.77x = 7,474.88 × 3,178.54
  4. Step 4: Simplify right side
    5,416.77x = 23,759,222.37
  5. Step 5: Solve for x
    x = 23,759,222.37/5,416.77
  6. Step 6: Final answer
    x = 4,386.23

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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.