Home / 7,219.48-10,848.25-3,890.20

Finding the Fourth Proportional to 7,219.48, 10,848.25 and 3,890.20

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Solution

The fourth proportional to 7,219.48, 10,848.25 and 3,890.20 is: 5,845.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219.48 : 10,848.25 = 3,890.20 : x
  2. Step 2: Convert to fraction form
    7,219.48/10,848.25 = 3,890.20/x
  3. Step 3: Cross multiply
    7,219.48x = 10,848.25 × 3,890.20
  4. Step 4: Simplify right side
    7,219.48x = 42,201,901.68
  5. Step 5: Solve for x
    x = 42,201,901.68/7,219.48
  6. Step 6: Final answer
    x = 5,845.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.