Home / 5,474.40-7,558.08-3,980.88

Finding the Fourth Proportional to 5,474.40, 7,558.08 and 3,980.88

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Solution

The fourth proportional to 5,474.40, 7,558.08 and 3,980.88 is: 5,496.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,474.40 : 7,558.08 = 3,980.88 : x
  2. Step 2: Convert to fraction form
    5,474.40/7,558.08 = 3,980.88/x
  3. Step 3: Cross multiply
    5,474.40x = 7,558.08 × 3,980.88
  4. Step 4: Simplify right side
    5,474.40x = 30,087,809.51
  5. Step 5: Solve for x
    x = 30,087,809.51/5,474.40
  6. Step 6: Final answer
    x = 5,496.09

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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.