Home / 3,048.40-4,572.48-2,121.28

Finding the Fourth Proportional to 3,048.40, 4,572.48 and 2,121.28

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Solution

The fourth proportional to 3,048.40, 4,572.48 and 2,121.28 is: 3,181.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,048.40 : 4,572.48 = 2,121.28 : x
  2. Step 2: Convert to fraction form
    3,048.40/4,572.48 = 2,121.28/x
  3. Step 3: Cross multiply
    3,048.40x = 4,572.48 × 2,121.28
  4. Step 4: Simplify right side
    3,048.40x = 9,699,510.37
  5. Step 5: Solve for x
    x = 9,699,510.37/3,048.40
  6. Step 6: Final answer
    x = 3,181.84

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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.