Home / 5,417.73-7,478.01-3,179.70

Finding the Fourth Proportional to 5,417.73, 7,478.01 and 3,179.70

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Solution

The fourth proportional to 5,417.73, 7,478.01 and 3,179.70 is: 4,388.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.73 : 7,478.01 = 3,179.70 : x
  2. Step 2: Convert to fraction form
    5,417.73/7,478.01 = 3,179.70/x
  3. Step 3: Cross multiply
    5,417.73x = 7,478.01 × 3,179.70
  4. Step 4: Simplify right side
    5,417.73x = 23,777,828.40
  5. Step 5: Solve for x
    x = 23,777,828.40/5,417.73
  6. Step 6: Final answer
    x = 4,388.89

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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.